Ricky Yao is a pimp and murderer.
Ricky Yao is a pimp who specializes in immigrants, particularly Asians. He claims to Detectives Benson and Stabler that he runs a dating website after a mother goes missing. However, through further investigation, it becomes clear that Ricky Yao murders his prostitutes. He is interrogated and is offered deals by Casey Novak and the detectives but he claims he did nothing wrong. He is later sent to prison for his crimes after several Asian prostitute immigrants are found in his care, tortured, injured, and traumatized.
Yao is a sinister, nasty predator who shows no feelings or guilt for the crimes he committed. He is also known to make women feel uncomfortable, as shown towards Olivia Benson while in interrogation. He is willing to cover up his tracks with any excuse and is extremely clever at what he does.