") no-repeat center center;background-size:10px 16px;content:' '}@media(min-width:768px){.gpjOba::before{display:none}}.kWYnHL{min-height:389px;margin-bottom:16px;clear:both}@media(min-width:1000px){.kWYnHL{min-height:380px}}.hWxisF{width:100%;box-sizing:border-box}@media(min-width:768px){.hWxisF{max-width:634px}}@media(min-width:1250px){.hWxisF{max-width:622px}}.dvfakS{display:flex;width:auto;box-sizing:border-box;align-items:center;justify-content:flex-start;gap:4px;color:#ec1a2e}.ctXiMg{display:block;font:bold 14px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration-line:underline;margin-block:0;text-align:center}.CRIit{display:inline-flex;align-items:center;justify-content:center;gap:4px}.CRIit:hover .sc-aja53j-2,.CRIit:hover .sc-a5wy94-0{color:#ac2a2c}.ghJHgZ{font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.jlvSeZ{display:flex;position:relative;overflow:hidden;width:auto;height:40px;flex-direction:column;order:-1;gap:8px;opacity:1;transition:all .5s ease-in-out;transition-behavior:allow-discrete}.jlvSeZ::after{--fade-from:rgba(255,255,255,0);--fade-mid:rgba(255,255,255,0.5);--fade-to:#fff;position:absolute;bottom:0;left:0;z-index:1;width:100%;height:40px;background-image:linear-gradient(to bottom,var(--fade-from) 0,var(--fade-mid) 50%,var(--fade-to) 100%);content:'';opacity:1;transition:opacity 150ms ease-out}@media(min-width:768px){.ifXxYf{order:-1}}@media(min-width:768px){.gYsKvs{display:flex;position:relative;align-items:flex-start;margin-top:12px}}@media(min-width:1000px){.qHctg .taboola{display:none}}.qHctg:has(#taboola-carousel-thumbnails){min-height:426px}.qHctg:has(#taboola-mid-article-thumbnails-crime){min-height:405px}@media(min-width:1000px){.qHctg:has(#taboola-carousel-thumbnails),.qHctg:has(#taboola-mid-article-thumbnails-crime){min-height:0}}.hCEqSm .tp-container-inner,.hCEqSm .sc-1suqprf-0{position:relative;box-shadow:0 -22px 16px 22px rgba(255,255,255,0.95)}.hCEqSm.closed{display:none}.jZkFWa{width:32px;color:#3b5998}@media(min-width:768px){.jZkFWa.mobile-only{display:none}}.jZkFWa:hover{color:#2f4779}.iyaxjG{width:32px;color:#000}@media(min-width:768px){.iyaxjG.mobile-only{display:none}}.iyaxjG:hover{color:#4e4e4e}.bxTlJH{width:32px;color:#25d366}@media(min-width:768px){.bxTlJH.mobile-only{display:none}}.bxTlJH:hover{color:#1da851}.cSnwsm{width:32px;color:#ec1a2e}@media(min-width:768px){.cSnwsm.mobile-only{display:none}}.cSnwsm:hover{color:#ac2a2c}.wViVX{display:flex;gap:12px}.kWPFaS{position:fixed;top:0;left:0;z-index:2147483644;background:rgba(0,0,0,0.5);cursor:pointer;opacity:0;transition:opacity 300ms ease-in-out}.kWPFaS.overlay-background--open{width:100vw;height:100vh;opacity:1}.gXmchn{--trans:300ms ease-in-out;position:fixed;top:0;left:0;z-index:2147483645;width:100vw;height:100vh;opacity:0;pointer-events:none;transform:translateY(-24px);transform-origin:top center;transition:transform var(--trans),opacity var(--trans)}.gXmchn.overlay--open{opacity:1;transform:translateY(0);transition-delay:150ms}.gXmchn.overlay--open>:first-child{pointer-events:auto}.cArLiK .sc-17yxc4y-0{display:none}.cArLiK:hover .sc-17yxc4y-0,.cArLiK.bookmark-button-saved .sc-17yxc4y-0{display:block}.cArLiK:hover .sc-17yxc4y-1,.cArLiK.bookmark-button-saved .sc-17yxc4y-1{display:none}.cArLiK.bookmark-button-saved .sc-17yxc4y-0{display:block}.cArLiK.bookmark-button-saved .sc-17yxc4y-1{display:none}.cArLiK.bookmark-button-saved:hover .sc-17yxc4y-0{display:none}.cArLiK.bookmark-button-saved:hover .sc-17yxc4y-1{display:block}.jKfqFn{--margin-x:12px;--modal-width:calc(100% - (var(--margin-x) * 2));--modal-max-width:351px;--padding:60px 16px 42px;--line-height:1.25;display:flex;position:fixed;top:50%;left:50%;overflow:auto;width:var(--modal-width);max-width:var(--modal-max-width);max-height:100vh;box-sizing:border-box;flex-direction:column;align-items:center;justify-content:center;padding:var(--padding);background-color:#eaf2f2;box-shadow:0 1px 1px rgba(0,0,0,0.5);line-height:var(--line-height);transform:translate(-50%,-50%)}@media(min-width:768px){.jKfqFn{--modal-width:600px;--modal-max-width:none;--padding:72px 80px 64px;--line-height:1.2}}@media(min-width:1000px){.jKfqFn{--modal-width:635px}}.eYHQuU{--close-button-margin:16px;position:absolute;top:var(--close-button-margin);right:var(--close-button-margin)}@media(min-width:768px){.eYHQuU{--close-button-margin:24px}}.gVWZyJ{width:100%;max-width:437px;margin-bottom:20px}@media(min-width:768px){.gVWZyJ{margin-bottom:18px}}.gvKsFx{position:absolute;overflow:hidden;width:.01em;height:.01em;padding:0;border:0;clip:rect(0,0,0,0);white-space:nowrap}.loKuIs{width:100%;margin:0}.ktFUxH{margin:0 0 30px;font:bold 26px/1.15 'Indy Serif','Indy Serif Fallback',serif}@media(min-width:768px){.ktFUxH{font:bold 28px/1.15 'Indy Serif','Indy Serif Fallback',serif}}.cnAboz{display:block;width:100%;padding:0;margin:0 0 30px;font:normal 16px/1.44 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.cnAboz{font:normal 20px/1.44 'Indy Sans','Indy Sans Fallback',sans-serif}}.bdfufZ{display:block;margin-top:30px;color:#222;font:normal 16px/normal 'Indy Sans','Indy Sans Fallback',sans-serif}.cVoYmY{padding:0}.ldnLrS{display:inline-block;width:32px;height:32px;color:#337e81}.ixvYXS{display:flex;flex-direction:row;justify-content:center;gap:12px}.hCHeth{display:flex;position:relative;justify-content:center}@media(min-width:768px){.hCHeth{justify-content:flex-end;padding-top:12px;margin:0}}.hvJvAA{display:flex}.sticky .hvJvAA{flex-direction:column}.kciiLJ{overflow:hidden;height:23px;margin-bottom:8px;border-bottom:0;clear:both}@media(min-width:768px){.kciiLJ{height:25px}}.fSsEip{display:inline-block;flex-shrink:0;margin:0 12px 0 0;font:bold 14px/normal 'Indy Sans','Indy Sans Fallback',sans-serif}.fSsEip::after{content:':'}.kdqbii{display:inline-block;margin-right:12px;margin-bottom:4px;color:#222;font:normal 14px/1.29 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration:underline}.kdqbii::first-letter {text-transform:capitalize}@media(min-width:1000px){.subscribed .lkPksW{margin-top:-184px}.article-feature:not(.article-feature-video) .subscribed .lkPksW{margin-top:-407px}}.lkPksW>p{margin:16px 0}.article-premium .lkPksW>p{line-height:27px}.lkPksW>h2{font-size:21px}.article-climate .lkPksW>h2{color:#ec1a2e}.article-sgi .lkPksW>h2{color:#ec1a2e}.lkPksW>p:first-child{margin-top:0}.lkPksW span:first-child~p:first-of-type{margin-top:0}.cnknzo{display:flex;position:relative;max-width:100%;min-height:600px;justify-content:center;margin:0 auto;background-color:transparent;clear:both}@media(min-width:1000px){.cnknzo{min-height:450px}}.teads .cnknzo{display:block}.cnknzo [data-mpu]{position:sticky;top:16px}@media(min-width:1000px){.dTdlgq{display:none}}.dTdlgq[data-mpu1]{min-height:600px}.dTdlgq.pb-20{padding-bottom:20px}.gMxIQB{margin:0 0 24px;font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.fJIQUi{font:bold 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.eFDpwi{overflow:hidden;width:100%;box-sizing:border-box;margin-bottom:16px}@media(min-width:768px){.eFDpwi{max-width:634px}}@media(min-width:1250px){.eFDpwi{max-width:622px}}.jkkqcL{width:100%;box-sizing:border-box;padding:8px 12px 12px;border-top:8px solid #ec1a2e;background-color:#fde8ea}@media(min-width:768px){.jkkqcL{padding-top:4px;padding-bottom:12px}}.dDFcwe{font:bold 22px/26px 'Indy Serif','Indy Serif Fallback',serif;margin:0 0 12px;text-align:center}@media(min-width:768px){.dDFcwe{font:bold 30px/34px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.048px;margin-bottom:12px;text-align:left}}.jbPJqN{display:block;margin-bottom:12px}@media(min-width:768px){.jbPJqN{display:none}}.fdEOdF{display:flex;width:100%;box-sizing:border-box;align-items:center;justify-content:center;gap:4px;background-color:#fde8ea;color:#ec1a2e}@media(min-width:768px){.fdEOdF{width:auto;justify-content:flex-start}}.bcQtEw{display:block;font:bold 14px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;text-decoration-line:underline;margin-block:0;text-align:center}.jIgCsj{display:inline-flex;align-items:center;justify-content:center;gap:4px}.jIgCsj:hover .sc-hez36s-5,.jIgCsj:hover .sc-a5wy94-0{color:#ac2a2c}.bhFQeV{font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}.kqOtlp{display:flex;width:100%;flex-direction:column}@media(min-width:768px){.kqOtlp{display:flow-root;gap:24px;transition:margin-bottom .3s ease-in-out}}.bvgAkY{display:flex;width:100%;flex-direction:column;align-items:center;justify-content:center}@media(min-width:768px){.bvgAkY{position:relative;z-index:1;width:212px;flex-shrink:0;justify-content:flex-start;margin-left:24px;float:right}}.ZbvOr{display:none;flex-direction:row;align-items:center;justify-content:center;gap:8px;margin-top:8px}@media(min-width:768px){.ZbvOr{display:flex;margin-top:12px}}.cqHcKs{display:flex;width:100%;align-items:center;justify-content:center;gap:8px;margin-top:8px;margin-bottom:12px}@media(min-width:768px){.cqHcKs{display:none}}@media(min-width:768px){.bjQKsM{order:-1}}.gBaKpR .sc-aja53j-5::after{--fade-from:rgba(253,232,234,0);--fade-mid:rgba(253,232,234,0.5);--fade-to:#fde8ea}@media(min-width:360px){.gBaKpR .sc-aja53j-5 .sc-aja53j-7{display:none}}.dVyExd{display:flex;min-height:600px;justify-content:center}@media(min-width:1000px){.dVyExd{min-height:450px}}.jHlYLm{min-height:600px}@media(min-width:1000px){.jHlYLm{min-height:450px}}.jHlYLm.mobile-only{display:block}@media(min-width:1000px){.jHlYLm.mobile-only{display:none}}.jHlYLm.desktop-only{display:none}@media(min-width:1000px){.jHlYLm.desktop-only{display:block;margin-bottom:16px}}.jHlYLm.desktop-only+p{margin-top:0}.jHlYLm .third-party-ad{position:sticky;top:16px}.czoMqL{width:100%;flex-grow:1}.czoMqL .amp-article-content[amp-access][amp-access-hide]{display:block;overflow:hidden;max-height:360px}.czoMqL .amp-article-content[amp-access][amp-access-hide] .social-share{display:none}.czoMqL .amp-article-content[amp-access][amp-access-hide].show-all-content{max-height:100%}@media(max-width:594px){.czoMqL .amp-article-content[amp-access][amp-access-hide]{max-height:530px}}.czoMqL .amp-newsletter-reg-gate{position:relative;left:-12px;width:calc(100% + 24px)}.czoMqL .social-share{width:100%;padding-top:10px;padding-bottom:20px}@media(min-width:768px){.czoMqL .social-share{justify-content:flex-start}}.czoMqL .social-share.sticky{display:none}@media(min-width:1000px){.czoMqL .social-share.sticky{display:flex;position:sticky;top:14px;width:34px;flex-direction:column;padding-top:0;margin-top:0;margin-left:-25%}.czoMqL .social-share.sticky amp-social-share,.czoMqL .social-share.sticky .sc-mgcah7-0{margin:0 0 16px}.article-feature-video .czoMqL .social-share.sticky{margin-top:0}.article-feature:not(.article-feature-video) .czoMqL .social-share.sticky{margin-top:35%}}.czoMqL.sponsored-article img,.czoMqL.sponsored-article video{width:100%;max-width:602px;height:auto}.czoMqL.sponsored-article iframe{max-width:602px;max-height:400px}.czoMqL .under-article-prompt-donations{padding-bottom:8px;margin-top:-3px}.czoMqL .big-letter{--color:#222;display:flex;position:relative;width:0;height:0;align-items:center;justify-content:center;padding:40px;margin-top:22px;margin-right:12px;border:1px solid var(--color);float:left;font:normal 52px/1 'Indy Serif','Indy Serif Fallback',serif;text-transform:uppercase}.czoMqL .big-letter:first-child{margin-top:6px}.czoMqL .big-letter::before{position:absolute;top:0;left:0;width:100%;height:100%;box-sizing:border-box;border:1px solid var(--color);border-radius:50%;content:''}.czoMqL #taboola-below-article-1{min-height:2350px}@media(min-width:768px){.czoMqL #taboola-below-article-1{min-height:3370px}}.czoMqL #taboola-below-article-1-split-num-1{min-height:130px}@media(min-width:768px){.czoMqL #taboola-below-article-1-split-num-1{min-height:415px}}.czoMqL .sc-fwko30-0+.sc-1xtsh2b-0{margin-top:-16px}@media(min-width:768px){.czoMqL{max-width:636px;margin:0}}@media(min-width:1000px){.czoMqL{max-width:624px;margin:0}.czoMqL.subscribed{max-width:636px}}@media(max-width:999px){.czoMqL{padding-right:0}.czoMqL .under-article-prompt-donations{margin-top:-18px}}.czoMqL .anchor-nav-header{scroll-margin-top:79px}.czoMqL .anchor-nav-header a{color:#222}.czoMqL .anchor-nav-header a:hover{color:#222}.clVPNf{display:flex;flex-wrap:wrap;justify-content:flex-start;margin-bottom:8px;color:#646464;font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.clVPNf{width:70%;align-items:center;justify-content:flex-start;margin-bottom:0;font:normal 16px/24px 'Indy Sans','Indy Sans Fallback',sans-serif}}@media(min-width:1000px){.clVPNf{width:70%;margin-bottom:0}}.hIiCJP{display:flex;height:20px;margin:0 12px 8px 0}.article-voices .hIiCJP{height:auto}@media(min-width:425px){.article-voices .hIiCJP{height:20px}}.hIiCJP::before{display:inline-block;align-self:center;margin-top:1px;margin-right:12px;content:'\2022';transform:scale(1.5)}.hIiCJP:first-child::before{content:none}@media(min-width:768px){.hIiCJP{height:24px;margin-bottom:0}.hIiCJP::before{margin-top:2px}}.hIiCJP time{display:block}.hIiCJP time::first-letter {text-transform:capitalize}.eNJptR{display:inline-block;margin:0 12px 8px 0;color:#ec1a2e;font:bold 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif;letter-spacing:-0.5px}.eNJptR:hover,.eNJptR:active{color:#ac2a2c}@media(min-width:768px){.eNJptR{margin-bottom:0}}.cePgis{margin:0 4px 8px 0}.cePgis::before{display:inline-block;margin-top:2px;margin-right:12px;color:#646464;content:'\2022';transform:scale(1.5)}.cePgis:first-child::before{display:none}@media(min-width:768px){.cePgis{margin-bottom:0}}.kuCYzg{display:flex;justify-content:flex-start;padding:0;margin:0 0 16px}@media(min-width:768px){.kuCYzg{display:flex;width:30%;align-items:center;justify-content:flex-end;margin:0}}@media(min-width:1000px){.kuCYzg{width:30%}}.gpMjkH{padding-top:0;border-top:0;border-bottom:0}@media(min-width:768px){.gpMjkH{display:flex;flex-flow:row wrap;padding-bottom:16px}.gpMjkH .sc-1qz44j0-0{order:1}.gpMjkH .sc-1qz44j0-6{order:2}}@media(min-width:1000px){.gpMjkH{flex-direction:row}}.hUayVl{padding:16px 12px 12px;text-align:left;font:bold 14px/18px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.hUayVl{padding:16px 16px 12px}}.article-infact .hUayVl{padding:16px 0}@media(min-width:1000px){.hUayVl{padding:24px 0 19px}.article-feature .hUayVl{max-width:968px;margin:0 auto}}.hUayVl a{color:#222}.hUayVl a:hover{color:#ac2a2c}.hUayVl a:hover::after{color:#222}.hUayVl a::after{margin-right:4px;margin-left:4px;content:'>'}.hUayVl a:last-child::after{display:none}.bPeEQC{margin:0 0 20px;letter-spacing:0}.iHWilb{margin:0;color:#646464;font:normal 16px/20px 'Indy Sans','Indy Sans Fallback',sans-serif}@media(min-width:768px){.iHWilb{font:normal 18px/22px 'Indy Sans','Indy Sans Fallback',sans-serif}}@media(min-width:1000px){.iHWilb{font:normal 20px/24px 'Indy Sans','Indy Sans Fallback',sans-serif}}.iHWilb p{font:inherit}.article-feature .iHWilb a{font-weight:bold}.gRuXKg{max-width:968px;margin:0 auto;background:#fff}@media(min-width:1000px){.gRuXKg{padding:0 16px}.parallax .gRuXKg{max-width:1240px}}.clZtvZ{font:bold 32px/36px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0156em}@media(min-width:768px){.clZtvZ{font:bold 44px/48px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0113em}}@media(min-width:1000px){.clZtvZ{font:bold 54px/58px 'Indy Serif','Indy Serif Fallback',serif;letter-spacing:-0.0092em}}.gLQzaj .sc-qvufca-0{margin:0 12px}@media(min-width:768px){.gLQzaj .sc-qvufca-0{max-width:968px;margin-right:16px;margin-left:16px}}@media(min-width:1000px){.gLQzaj .sc-qvufca-0{margin-right:auto;margin-left:auto}}.gLQzaj .sc-qvufca-2{margin-bottom:16px;color:#222}@media(min-width:768px){.gLQzaj .sc-qvufca-2{margin-bottom:18px}}@media(min-width:1000px){.gLQzaj .sc-qvufca-2{margin-top:0}}.article-feature .gLQzaj .sc-qvufca-2{text-align:center}@media(min-width:1000px){.article-feature .gLQzaj .sc-qvufca-2{max-width:968px}}.gLQzaj .sc-aeekvc-0{margin-bottom:16px}@media(min-width:1000px){.gLQzaj .sc-aeekvc-0{max-width:968px}}.gLQzaj .sc-aeekvc-0 p{margin-top:0}@media(min-width:768px){.gLQzaj .sc-aeekvc-0 p{margin-bottom:16px}}@media(min-width:2560px){.gLQzaj .sc-aeekvc-0 p{margin-bottom:12px}}.ldpSwp{--bleed:12px;display:flex;box-sizing:border-box;flex-direction:row;gap:32px;padding:16px var(--bleed);background-color:#fff}.article-liveblog .ldpSwp{background-color:#f7f7f7}@media(min-width:768px){.ldpSwp{--bleed:0;max-width:1000px;margin:0 auto}}@media(min-width:1000px){.ldpSwp{--bleed:16px;max-width:1000px;padding:var(--bleed)}}.ilJfaV{overflow:hidden;height:0;color:transparent}.fIgmuu{max-width:100%;margin:0 0 20px}.fIgmuu.sticky{position:sticky;top:16px}.grPbuS{min-height:600px}.grPbuS #mpu1{position:sticky;top:16px}.jfSvuX{min-height:250px}.kdHApG{max-width:100%}.dgoHoz{margin:0 0 6px;color:#646464;font-family:'Indy Sans','Indy Sans Fallback',sans-serif;font-size:15px}.eSkAOW{margin:0 0 12px}.ctSnkl{height:380px}.cCOQKx{width:100%;height:51px}.NgRo{margin-bottom:16px;border-bottom:1px solid #919191}.ksidoU{margin-bottom:16px}.ksidoU [role='listitem']{position:relative;margin-bottom:12px;border-bottom:1px solid #d3d3d3}.ksidoU [role='listitem'] .sc-u4n1j-0{display:flex;position:absolute;bottom:16px;left:10px;width:32px;height:32px;align-items:center;justify-content:center;border-radius:50%;background-color:#ec1a2e}.ksidoU [role='listitem'] .sc-u4n1j-0>svg{width:90%;fill:#fff;stroke:transparent}.ksidoU [role='listitem']:first-child{display:block;padding-bottom:0;margin-bottom:12px}.ksidoU [role='listitem']:first-child .sc-u4n1j-0{top:-15px;bottom:auto;left:12px}.ksidoU [role='listitem']:first-child>*:first-child{display:block;width:100%;height:205px}.ksidoU [role='listitem']:first-child>*:last-child{--content-bg:#222;--content-bg-opaque:rgba(34,34,34,0.7);position:absolute;bottom:0;width:100%;padding:28px 12px 12px;background:linear-gradient(to top,var(--content-bg) 70%,var(--content-bg-opaque) 100%) no-repeat;color:#fff;font-size:17px;font-weight:bold}.ksidoU [role='listitem']:last-child{margin-bottom:0;border-bottom:0 none}.bhdekM{min-height:1924px}@media(max-width:767px){.bhdekM{display:none}}.dvQXpA{width:308px}.dvQXpA.hidden{display:none}@media(max-width:999px){.dvQXpA{display:none}}.article-liveblog .bZTaXI{background-color:#f7f7f7}.wQyIS{justify-content:center}.jQYxbM{justify-content:center}
Asia Southeast Asia Thai police arrest woman suspected of killing 12 of her friends using cyanide Suspect will fit the description of a serial killer if evidence links her to other murders
Subscribe to Independent Premium to bookmark this article Want to bookmark your favourite articles and stories to read or reference later? Start your Independent Premium subscription today.
Subscribe Already subscribed? Log in Royal Thai Police police officers escort a suspect Sararat Rangsiwuthaporn accused of killing at least twelve victims with cyanide (EPA) Your support helps us to tell the story From reproductive rights to climate change to Big Tech, The Independent is on the ground when the story is developing. Whether it's investigating the financials of Elon Musk's pro-Trump PAC or producing our latest documentary, 'The A Word', which shines a light on the American women fighting for reproductive rights, we know how important it is to parse out the facts from the messaging.
At such a critical moment in US history, we need reporters on the ground. Your donation allows us to keep sending journalists to speak to both sides of the story.
The Independent is trusted by Americans across the entire political spectrum. And unlike many other quality news outlets, we choose not to lock Americans out of our reporting and analysis with paywalls. We believe quality journalism should be available to everyone, paid for by those who can afford it.
Your support makes all the difference. Read more Thailand’s police have arrested a woman suspected of killing 12 friends and acquaintances using cyanide .
Sararat Rangsiwuthaporn, 32, was this week arrested and charged with first-degree murder over the deaths, which happened over the span of several years.
She came under suspicion following the death of her friend Siriporn Khanwong, 32, who collapsed during a trip with her to the western Thai province of Ratchaburi on 14 April.
The two took part in a Buddhist protection ritual at a river and Siriporn died on the riverbank after collapsing, police said.
Autopsy results detected traces of cyanide in her body and the cause of death was found as heart failure, police said.
Police said phone, money and bags were also missing from the deceased woman and they found a bottle of cyanide in Ms Sararat’s possession during her arrest, according to Thailand’s The Nation .
Following inquiries, police said she is believed to have killed other 11 people, including her ex-boyfriend, who suffered similar deaths.
Investigators and forensic authorities are investigating other deaths to find evidence and a definite connection with Ms Sararat, police major-general Montri Theskhan, chief of the Crime Suppression Division, said on Wednesday.
“If the evidence shows she has committed other murders, then the suspect will fit the description of a serial killer,” Maj-General Montri added.
People familiar with the investigation told the Thai newspaper that police have compiled a list of 12 people who suffered similar unusual deaths and could be linked to Ms Sararat.
They were aged between 33 to 44.
Police said the victims include her former partner and two female police officers but did not identify the victims.
Ms Sararat’s lawyer has said she denied all charges. They said Ms Sararat, who is pregnant, has suffered stress while under police custody for several hours.
Police said the murders may have been motivated by financial reasons.
In one of the most serious killing cases, which also inspired a Netflix docuseries The Serpent . Charles Sobhraj was convicted and linked to at least 20 murders in Thailand in which victims were drugged, beaten, looted and even burnt. He walked free in December last year after completing his sentence in Nepal for murdering two backpackers.
Thank you for registering Please refresh the page or navigate to another page on the site to be automatically logged in Please refresh your browser to be logged in
Join our commenting forum
Join thought-provoking conversations, follow other Independent readers and see their replies
Comments