Alvin Cole's mother and sisters were arrested during protests that were sparked after charges were not laid against the officer who shot Cole.

The district attorney said Wauwatosa Officer Joseph Mensah used reasonable force when he fatally shot 17-year-old Alvin Cole outside a shopping mall on Feb. 2.

The man whose shooting by Milwaukee police triggered hours of violent protests on the city's predominantly black north side was a 23-year-old black man and father to a toddler, his mother said Sunday.