See Me (S02E13)

When a doctor is slain just outside of the mayor's residence, Detectives Goren (Vincent D'Onofrio) and Eames (Kathryn Erbe) initially suspect one of the victim's mentally afflicted relatives but their investigation also leads to a crooked halfway house whose operators run up huge and unnecessary bills at the expense of the government. However, the murder clues soon shift to point to another possible culprit (guest star Chrisopher Evan Welch) who might have been conducting shameful experiments on the home's tormented patients. (iTunes)