Minnesota Rep. Melissa Hortman and her husband were shot and killed at their home early Saturday morning by a man disguised as police, officials said.

Members of Congress are attending emergency security briefings after the killing of a Minnesota state lawmaker.

The man accused of assassinating the top Democrat in the Minnesota House held deeply religious and politically conservative views, telling a congregation in Africa two years ago that the U.S. was in a "bad place" where most churches didn't oppose abortion.

Gilbert, the golden retriever trained by murdered Minnesota lawmaker Melissa Hortman, had to be put down after the shooting that killed her and husband Mark at their home.