Partially 3D-printed gun, ski mask found during Ann Arbor traffic stop, police say
A partially 3D-printed gun was found during a traffic stop on Ann Arbor's west side during the weekend, Ann Arbor police say. The traffic stop took place about 10 p.m. Saturday in the 600 block of North Maple Road after Ann Arbor police officers spotted a vehicle failing to stay in its lane and crossing into a bike lane,