MINNEAPOLIS (AP) — The gunman who killed five people at a Minneapolis sign company last week was fired for poor performance and lateness just moments before he started shooting, and two top managers who tried to stop him were shot during the struggle, police said Monday.

Investigators released a timeline of the rampage at Accent Signage Systems along with background about gunman Andrew Engeldinger, including that he’d never threatened anyone at the company and his only contact with local police had been as the victim of property crime.