Chemistry graduate student gets seven years for poisoning co-worker

A graduate student who pleaded guilty to poisoning a fellow chemist at Queen’s University in Kingston, Canada has received a seven-year prison sentence for ‘administering a noxious substance’, and ‘aggravated assault’. The court deducted time already served, meaning that Zijie Wang, a chemistry PhD candidate, will spend just under six years in prison for repeatedly smuggling the carcinogen N-nitrosodimethylamine (NDMA) into the food and drink of the victim, a postdoctoral fellow at the university. Wang’s lawyer had advocated a four-year prison sentence, while the prosecutor had pushed for seven years.