OMAHA, Neb. (AP) — Prosecutors have dismissed charges against a former Omaha police officer in an alleged excessive force case.

Aaron Von Behren’s misdemeanor charges of being an accessory to a felony and obstructing governmental operations were dismissed Monday. Douglas County Attorney Don Kleine said authorities did not have admissible evidence to support the charges.

Von Behren was one of several officers involved in a March 2013 arrest of three brothers. He was accused of trying to coordinate officers’ stories to cover up the incident.

Former officer James Kinsella is accused of destroying a memory card used by one of the brothers to record the arrest. He later entered a no contest plea to misdemeanor charges.

The family of the men arrested has sued the Omaha police department.