Student who vandalized roommate's property with racist slur also slowly poisoned him, prosecutors say The Citizen 7 years ago Yukai Yang turned himself in Thursday for allegedly attempting to kill his longtime roommate by slowly dosing him with toxic amounts of thallium. Source: tallahassee.com Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Roommate of Tallahassee man found dead in landfill arrested weeks agoDateFebruary 11, 2022In relation toWacissa60-year-old charged with attempted homicide after stabbing roommate, TPD saysDateFebruary 15, 2022In relation toWacissaRoommate found in slain gay activist's BMW the day after his body was discoveredDateMarch 1, 2022In relation toWacissa