 Lalor enlisted in the United States Marine Corps Reserve in July 2000 and thereafter served as a U.S. Marine Corps reservist.At basic training, he was the second oldest recruit in his platoon.He later enrolled at Pace University School of Law, but left school when his reserve infantry unit was called to active service after the September 11 attacks on the World Trade Center in 2001, with Lalor training at Camp Lejeune, North Carolina as part of a "ready reaction force."