"What you've got to get at is the hearts and minds of people who want to pull out a gun and fire at a group of 60 people," the police commissioner said.
Suspect Stephen Bratton once supported a bill that would have criminalized abortion in the state.
After being forced into a closet, an 11-year-old grabbed a machete and swung it at the intruder, striking him in the head.
Kenneth French "has never been violent with any of us, so we don’t know how this escalated," his relative said.
Autopsies were pending for an Iowa Department of Public Safety worker, his wife and their two sons. Police said all had been shot.