The recent death of a 23-year-old man in Calgary has been linked to tainted ecstasy, making him the seventh person in the area believed to have been killed by the drug.
Toxicology tests show that the toxic additive PMMA was in Cody Gorlick's system when he was found dead on the SAIT Polytechnic campus earlier this month.
The deadly additive is suspected to be behind six other deaths in the Calgary area.
Police are still investigating the death of a 37-year-old man after an apparent drug overdose in the city's northwest end on Sunday.
Two other people who were with the man at the time were transported to hospital in the serious condition.
Officials are also waiting for the results of toxicology tests conducted on two young women who died after overdosing on drugs in a downtown hotel on Saturday.
Meanwhile, local police are warning young people to stay away from the drug.
Officers say they have received numerous tips about the tainted drug but still don't have enough information to locate a suspect or dealer.
Earlier this month, a Calgary mother urged young people to stay away from ecstasy after a lethal dose of the drug killed her 18-year-old son.
The dose that killed Daniel Dahl is suspected to have been laced with PMMA.
"I can't deny that my son took that drug," Carol Dahl told CTV Calgary.
"But I still can't help but think that we could press more charges and make these dealers and the people held accountable."
Calgary police Sgt. Mike Bossley told The Canadian Press that it would be up to the Crown to lay murder charges if a dealer is connected to the tainted drug.
No arrests have been made in any of the seven cases.
