L.A. Heat - Season 2 Episode 7 John Doe

Chase and August investigate the murders of two men: one an affluent, politically-connected businessman and the other a homeless man. They discover that the homeless victim was once a successful businessman who was going to testify against infamous criminal Bobby Cole. But the man was beaten so badly he forgot his identity and ended up on the streets. The detectives race to uncover Cole's secret before his hitman makes them the next victims.