Episode #2.84 (pp-198)

Stella brings Richard a bag full with stolen narcotics. However, Dr. Rossi, thinking Richard has medical problems, runs into him first and questions him. He later runs into Stella and she admits she stole his keys to steal morphine. Meanwhile, Elliot is impressed with Allison's manuscript. Stella tells Michael she is scum and admits she lied about Rodney. She is willing to let Michael turn her in, saying she will tell the truth. Richard and Steven interrupt them and Richard immediately realizes the truth is out. He tries to talk himself out of it and eventually runs away, only to be stopped at the exit of the hospital. He is later arrested. Right after, Stella calls Fowler and admits she lied, before being driven to the police station.