WAUWATOSA - Police are investigating an incident that happened at the residence of suspended Wauwatosa Police Officer Joseph Mensah around 8 p.m. on Saturday, Aug. 8. While police said it happened at the residence of the officer who has killed three people in the line of duty in five years, in a Facebook post, Mensah said it happened at his girlfriend's house. According to police, a group of approximately 50-60 people "targeted and began to vandalize" the home on 100th Street and Vienna Street. "It was a whole lot of police cars and taped off," said Rita Evans, neighbor. "I...