Tuam Tshoj tau pib ua kev tshawb fawb txog cov cuab yeej tiv thaiv kev ua phem nyob rau xyoo 1980, thiab tau ua tiav hauv kev siv thev naus laus zis xws li kev sib txuas thiab kev tawg ntawm kev ua kom khaus, kev tso pa tawm, cov tshuaj ua kua, cov kua ua kom tawg, thiab kev sib tawg ntawm cov khoom tawg; thawj tiam ntawm kev sib ntaus sib tua Adas' cov roj Grenades thiab cov tshuaj acetophenone uas tau tawg tau zoo tau tsim nyob rau nruab nrab xyoo 1980s. Tom qab ntawd, txhawm rau ua kom tau raws li qhov xav tau ntawm kev txhim kho hauv zej zog, cov khoom tawg thiab tawg tau acetophenone tau tsim thiab tsim tawm thaum muaj xwm txheej ceev.
Thaum pib ntawm lub xyoo pua 21st, kev tawg, kev sib txuas, thiab cov tshuaj tua hluav taws acetophenone tau tsim. Kaum tawm ntawm cov khoom tiv thaiv kev kub ntxhov xws li dav hlau. Txoj kev txhim kho ntawm cov cuab yeej tiv thaiv kev tawm tsam yog txhawm rau nrhiav cov tshuaj tiv thaiv kev tawm tsam tshiab uas tuaj yeem ua tau zoo dua qhov tsis xav tau kev tuag, ua kom zoo dua tus qauv ntawm cov mos txwv, thiab ua kom yooj yim ntau yam.
