Anne Arundel County man who threatened co-workers had nearly 150 stashed guns, police say

Authorities in Maryland say they found an arsenal of nearly 150 guns in the home of a man whose colleagues said he threatened to shoot them at work.

News outlets report that Anne Arundel County police charged Mark Edward Rutkowski on Tuesday with one count of making a threat of mass violence.

Assistant State's Attorney Colin Kelly said officers found handguns, rifles, shotguns and an assault-style rifle. Some weapons were registered to Rutkowski's father.

Rutkowski was fired last week from his job at Gischel Machine Shop. Police say employees told them he threatened to "shoot this whole place up," and listed the workers he'd kill first.

The Capital reports Rutkowski declined a public defender at a Wednesday hearing and told a judge his mother had recently died.