Oliver Tate was a sex offender who appeared in the season thirteen finale and season fourteen premiere of CSI: Crime Scene Investigation. He was one of the main suspects of the murders of different sex trade workers who sought shelter at the Fellowship for the Fallen Angels, as he was a regular client who required the services of different prostitutes who lived and worked there, but ends up being another victim of the actual killer, as he is eventually killed in a fiery car explosion, which would look like one of the Circles of Hell, Violence, being this part of the signature left at the other killings.