CSI: Crime Scene Investigation (2000)

S4E16 Getting Off

Catherine and Sara confront the aftermath of a death that initially appears to involve a transvestite. However, during the autopsy, they discover that what looked like makeup was actually face paint; the deceased was a clown. Meanwhile, Grissom, Nick, and Warrick investigate the murder of a man found in a homeless encampment, uncovering that he had been employed at a rehabilitation center for those battling addiction.