“You showed in a tough and chaotic moment, how much you care, and what you’re willing to do to support and care for strangers,” she said.
The police chief and the mayor did not take questions at the news conference.
Gov. Brad Little of Idaho said on Twitter that those involved in the shooting were in his prayers, and the state was ready to assist the Boise police in investigating the shooting.
Diane Green told The Idaho Statesman that she was at the Apple store inside the mall when she heard a “horrible crashing sound.”
“It was like a metal window had blown in and it was echoing throughout the mall,” she told the newspaper. “Most of us there were startled at first, and then right away we heard five to six gunshots.”
Ms. Green told the paper that those at the store sought shelter in the storeroom, where they stayed for about two hours.
The two-story Boise Towne Square mall has more than 150 stores and restaurants and is surrounded outside by other businesses.
The management office of the mall did not immediately respond to a request for comment on Monday.