Paul Callan served as co-counsel with John Kelly on the plaintiff side of the civil trial, where he handled the examination of several witnesses including Detective David Rossi and Detective Kenneth Berris. His questioning of Rossi focused on the early police response to the Bundy crime scene, including the transfer of the case from West L.A. to the robbery/homicide division and the initial discovery of blood evidence. Callan's work complemented the broader plaintiff team's effort to establish the timeline and chain of evidence from the night of the murders.