Jeffrey Arenburg was a Canadian gunman, who shot and killed broadcaster Brian Smith in Ottawa on August 1, 1995.

Arenburg, who was paranoid schizophrenic, had gone to Smith's employer, CJOH, because he thought the station was broadcasting messages in his head. Smith was the first broadcast personality that Arenburg saw and recognized coming out of the building.

Following the shooting, police found a list of other Ottawa media personalities in Arenburg's apartment, and an official at the city's press club noted that he had previously ejected Arenburg from the club three times for loudly demanding to see various people on his list.

Before moving to Ottawa, Arenburg had been a scallop fisherman in Nova Scotia. He had physically assaulted a radio station manager in Bridgewater in 1992, again citing messages being broadcast in his head.

Arenburg was found guilty of assault and fined $300 or two weeks in jail in the earlier incident, but never showed up for his trial. He had already skipped town and moved to Ottawa; the authorities in Bridgewater decided that it was not worth their while to track him down.

Arenburg was found not criminally responsible in Smith's death, due to his mental condition. He was remanded to the Penetanguishene Mental Health Centre . In 2001, the centre began to grant Arenburg 72-hour release; he applied for full conditional release in 2004.

Smith's murder led to renewed calls in Canada for strengthening of the government's gun control legislation.