Man plows into family with vehicle, kills 2 with shotgun, then another victim kills him

Billings, Montana — A man drove his vehicle into a family as they walked near Glacier National Park then got out and began shooting at them with a shotgun, killing one man and mortally wounding a toddler before one of the victims managed to kill the assailant after he ran out of ammunition, authorities said Tuesday.

Killed in the attack on the Blackfeet Indian Reservation in northwestern Montana were David Siau, 39, of Syracuse, New York, and Siau's 18-month-old daughter, McKenzie.

The assailant, Derick Amos Madden, 37, had been in a prior relationship with the woman who killed him and had mental health issues, according to the Glacier County Sheriff's Office.