The Denver coroner says a Canadian man found dead in a hotel room with a pound of sodium cyanide nearby died of cyanide poisoning.
The cause of death was announced Thursday, but authorities haven't determined whether 29-year-old Saleman Abdirahman Dirie committed suicide.
Police say they don't suspect foul play and the FBI says there's no apparent connection to terrorism.
Officials have not said why he had the poison or why he was in Denver, where the Democratic Convention starts in less than two weeks.
Dirie, of Ottawa, was found dead Monday. Acquaintances say the Dirie family came from Somalia and are now Canadian citizens.