Here’s what we know about the 57-year-old charged with the murders of state representative Melissa Hortman and her husband and shootings of state senator John Hoffman and his wife.

The man accused of shooting Democratic state lawmakers in Minnesota on Saturday while impersonating a police officer worked for a security company that advertised a fleet of “police type vehicles,” and other equipment that could potentially have aided him in appearing to be law enforcement.

Vance Luther Boelter, 57, was arrested on Sunday for allegedly killing a Minnesota Democratic state lawmaker and her husband while posing as a police officer, Governor Tim Walz said.