Authorities have apprehended Vance Luther Boelter, who is alleged to have killed Minnesota Democratic state Rep. Melissa Hortman and her husband, Mark. The suspect also allegedly shot Minnesota state Sen.

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.

Boelter, 57, was arrested at about 9 p.m. June 15. He is accused of shooting the two Democratic state legislators and their spouses in the early morning hours of June 14. The Minnesota State Patrol took him into custody in rural Sibley County, roughly 60 miles southwest of Minneapolis.