Philadelphia police arrested more than 50 people after multiple stores, including Apple, in the Center City area were ransacked Tuesday night following the gathering of a large crowd that, at one point, grew to about 100 young adults and teenagers, authorities said.

The looting began within a half hour after the conclusion of a peaceful protests in downtown Philadelphia over a judge’s decision on Tuesday to dismiss charges against Mark Dial, a former Philadelphia police officer who fatally shot Eddie Irizarry.

The shooting of Irizarry drew national attention after body camera footage contradicted the initial police account, which purported that the 27-year-old lunged at officers with a knife. Charges against Dial were refiled hours after the judge dismissed the case.