Michael Mattioli made an initial appearance in court

Milwaukee police officer Michael Mattioli leaves court after he makes his initial appearance in court to face charges of reckless homicide in the death of Joel Acevedo after a party at Mattioli's house to which Acevedo was invited. He appeared with his attorney Michael Hart before Judge Jeffrey Wagner in Milwaukee, Wisconsin, Wednesday, June 24, 2020.

Milwaukee police officer Michael Mattioli leaves court after he makes his initial appearance in court to face charges of reckless homicide in the death of Joel Acevedo after a party at Mattioli's house to which Acevedo was invited. He appeared with his attorney Michael Hart before Judge Jeffrey Wagner in Milwaukee, Wisconsin, Wednesday, June 24, 2020.

Milwaukee police officer Michael Mattioli leaves court after he makes his initial appearance in court to face charges of reckless homicide in the death of Joel Acevedo after a party at Mattioli's house to which Acevedo was invited. He appeared with his attorney Michael Hart before Judge Jeffrey Wagner in Milwaukee, Wisconsin, Wednesday, June 24, 2020.

Michael Mattioli makes his initial appearance in court to face charges of wreckless homicide in the death of Joel Acevedo after a party at Mattioli's house which Acevedo was invited. He appeared with his attorney Michael Hart before Judge Jeffrey Wagner in Milwaukee, Wisconsin, Wednesday, June 24, 2020.

Milwaukee police officer Michael Mattioli leaves court after he makes his initial appearance in court to face charges of reckless homicide in the death of Joel Acevedo after a party at Mattioli's house to which Acevedo was invited. He appeared with his attorney Michael Hart before Judge Jeffrey Wagner in Milwaukee, Wisconsin, Wednesday, June 24, 2020.

Michael Mattioli consults with his attorney Michael Hart as he makes his initial appearance in court to face charges of reckless homicide in the death of Joel Acevedo after a party at Mattioli's house to which Acevedo was invited. He appeared before Judge Jeffrey Wagner in Milwaukee, Wisconsin, Wednesday, June 24, 2020.

Family members of Joel Acevedo are joined by a coalition of local and national organizations holding a rally outside the Milwaukee County Courthouse Wednesday, June 24, 2020. They are demanding that Milwaukee police officer Michael Mattioli be fired for his murder of Joel Acevedo while off duty. Mattioli is charged with reckless homicide after Acevedo was killed at Mattioli's house the morning after a party to which Acevedo was invited.

A family member of Joel Acevedo is joined by a coalition of local and national organizations holding a rally outside the Milwaukee County Courthouse Wednesday, June 24, 2020. They are demanding that Milwaukee police officer Michael Mattioli be fired for his murder of Joel Acevedo while off duty. Mattioli is charged with reckless homicide after Acevedo was killed at Mattioli's house the morning after a party to which Acevedo was invited.

Family members of Joel Acevedo are joined by a coalition of local and national organizations holding a rally outside the Milwaukee County Courthouse Wednesday, June 24, 2020. They are demanding that Milwaukee police officer Michael Mattioli be fired for his murder of Joel Acevedo while off duty. Mattioli is charged with reckless homicide after Acevedo was killed at Mattioli's house the morning after a party to which Acevedo was invited.