It’s difficult to verify exactly where Hendren and Riordan were and when they were there. They attended roll call at 2nd District headquarters on Sublette Avenue at 10:50 p.m. on Jan. 23. Within minutes, at 10:58 p.m., the two officers were assigned to investigate a reported assault at an assisted living facility near Lindenwood Park.

By 11:33 p.m., records show, the officers concluded the call. The department said the call was categorized as unfounded, and no report was written. Workers at the facility declined to speak to a reporter about the call, and whether they remembered the officers who responded.

Then, at 11:48 p.m., a burglar alarm started ringing at a dialysis center on Manchester Avenue, according to police records of the officers’ assignments. That’s the call Riordan said he and Hendren never answered, sources say.

Instead, at some point, the officers went to Hendren’s house on Dover Place. Riordan said other officers checked out the burglary alarm at the dialysis center and called to say nothing appeared awry, the sources said.

Riordan or Hendren then reported that to dispatch as if they had gone to the scene. Police records list Hendren and Riordan as handling the call. The department refused to release audio recordings of the calls to dispatch, citing the ongoing investigation into the shooting.