Best Psychology in Film, Tommy McInnis, Season 4, Ep 3

Police Officer Nelson Velez and former homeless man-turned-homeless Outreach Worker, Tommy McInnis, worked together in the subways helping homeless people from 1993 to 2002. When they parted in 2002, Nelson continued his assignment with the homeless outreach unit, using his inherited skills. He was walking in Tommy's shoes, having been accepted as a good replacement by the same homeless people that Tommy worked with before.

Tommy left MTA Connections after the terror attacks on the World Trade Center on Sept. 11th, 2001. He trained for and later became an Emergency Medical Technician. He was now busy racing around Midtown Manhattan in an ambulance with lights and sirens, responding to emergencies along with police and firefighters. He now walked in Nelson's shoes.

They remain friends to this day. Nelson retired from the police department in 2005, and Tommy continues to work as an EMT in Manhattan. They both still live in and work in New York City.