The FBI investigate a warehouse in Dearborn, Mich., where a Sunni Islam leader was fatally shot Wednesday while allegedly resisting arrest and exchanging gunfire with federal agents. (Paul Sancya/Associated Press)

The wife of Mujahid Carswell, the son of a Sunni Islam leader killed in a shootout with police in Detroit on Wednesday, is denying allegations that her husband is linked to a radical religious movement advocating violence against the United States.

Mujahid Carswell, 30, the son of the slain Sunni leader, was arrested in Windsor, Ont., on Thursday afternoon. (FBI)

Carswell, 30, was arrested without incident Thursday in Windsor, Ont., and handed over to U.S. authorities. He could face charges of conspiracy in the U.S.

"My husband's a good man who's just trying to raise his family," said Carswell's wife, who asked not to be named. She said she and Carswell divide their time between Windsor and Detroit.

Carswell, an American, is one of three men with Ontario connections believed to have ties to Luqman Ameen Abdullah, who was killed in a shootout with FBI and Detroit police.

Carswell is the son of Abdullah — also identified as Christopher Thomas — who the FBI alleges was advocating and encouraging his followers at the Al-Haqq mosque in Detroit to commit violent acts against the U.S.

Authorities are still searching for the other two men.

Authorities allege that Luqman Ameen Abdullah was encouraging his followers at a Detroit mosque to commit violent acts against the U.S. (Ron Foster Sharif/Muslim Alliance of North America/Detroit News/Associated Press)

Carswell's wife wouldn't provide CBC News with her name and declined to appear on camera or have her voice recorded.

She said she has been married to Carswell for a couple of years and is due to give birth to their first child, a girl, in about two weeks. Carswell, she said, is an American citizen and an audio engineer who lives in Detroit.

The couple commutes between there and her home in Windsor, across the river from Detroit.

She said Carswell was in Windsor on Wednesday when he got a call around 6 p.m. that his father had been shot. After going to an internet café to find out more details, the couple realized that police were searching for Carswell.

Carswell's wife said they couldn't find a lawyer for her husband and local police showed up to arrest him at about 12:30 p.m. Thursday.

She said she didn't know where her husband was being held and she is still trying to find a lawyer for him.

She called the allegations against her husband and late father-in-law fabricated and outlandish. She said they are good people who have done charity work for years in Detroit, providing food and shelter for the homeless.