Updated: 8:48 AM CDT Jul 28, 2021 A judge is expected to rule Wednesday on whether to charge former Wauwatosa police Officer Joseph Mensah in one of his three on-duty shooting deaths. Dash camera video from 2016 shows Mensah shooting and killing Jay Anderson, who was asleep in his car in Madison Park.Milwaukee County's district attorney decided not to charge Mensah, but Anderson's family asked a judge to independently file criminal charges against Mensah.Mensah invoked his Fifth Amendment right and did not testify during the hearing in May.Wauwatosa's now-retired police chief did testify in the ongoing case. Mensah now works as a Waukesha County sheriff's deputy.He also shot and killed Antonio Gonzalez and Alvin Cole while on duty.