William Hambrough is a former hedge fund manager from Carcer City. He has long been suspected of falsifying profits and embezzling investments. His chauffeur is often seen picking up streetwalkers at Chase Point in Bohan. He is believed to be addicted to low rate prostitutes, cocaine and board games. He is listed as being in custody during the events of GTA IV. It is possible that Hambrough is the man that Thomas Stubbs III gets Johnny Klebitz to take a photo of in the mission "Phone Ho" as he is known to use prostitutes and is involved in investments. This also might be how he ends up in custody, although this is never actually stated.