Police Investigating Motive Behind Deadly Idaho Mall Shooting

Authorities said two people were killed and four others injured after a gunman opened fire at the Boise Towne Square shopping mall.

Investigators are trying to figure out the motive behind a shooting at a Boise, Idaho, shopping mall that killed two people and injured four others Monday afternoon.

One of the injured is a police officer who is now out of the hospital. The officer was injured in an exchange of gunfire with the suspect, who was detained and hospitalized in critical condition, police said.

Boise Towne Square is the city's largest shopping mall. Many people tried to run for the exits when they realized what they heard was bullets being fired.