S4E13 · Ghosts of the Past

Jack Keith, a Private Investigator whom Chris knew, is found murdered. While investigating, Chris and Rita discover that he was working on a case for Paul Ricker, a wealthy computer programmer; Ricker had hired Keith to see if his wife was having an affair. When Ricker also shows up dead, Lance and Lorenzo talk to Ricker's wife Suzanne, a friend of Rita's. With some more investingating, they discover that Suzanne was once a prostitute, and testified against her pimp, Bobby. They believe Bobby, now out of jail, was blackmailing Suzanne--but she denies everything to Rita. Meanwhile, Chris has a problem with allowing Jillian to pay for things.