Born and reared on the Lower East Side of Manhattan, Marlon attended Power Memorial Academy from 1983 to 1984. When that school closed, Marlon transferred to Monsignor McClancy Memorial High School in 1984. Power’s loss was McClancy’s gain. As an aspiring athlete, he was a member of the school’s basketball team and played in several summer leagues throughout the New York City area.
In his first season at McClancy, Marlon led the junior varsity team to the CHSAA Semi-Finals. As a senior, Marlon was named to the All-Tournament Team at the school’s annual Brother Arnold Memorial Tournament. Marlon was the leading rebounder for two straight seasons on the varsity level and ranks as one of the leading rebounders in the history of the school. Marlon served as one of the tri-captains of the varsity basketball team along with Russell Williams and Derek Amalbert.
Marlon made the New York Daily News, Newsday, and Coaches CHSAA Queens Second Team as well as the New York Post Honorable Mention All-City. Marlon was also inducted into the National Honors Society and received the Student-Athlete Award at graduation.
Marlon was awarded a full basketball scholarship to Xavier University in Ohio but chose to accept a scholarship from Saint Joseph’s University in Philadelphia, Pennsylvania, a Division I basketball program. During his four years at St. Joseph’s University, he participated in several amateur basketball competitions in Spain, Sweden, and Finland.
Marlon received a Bachelors Degree in Criminal Justice in May 1991, and a Masters Degree in Justice Administration in May 1996 from St. Joseph’s University.
In September 1991, he was employed as a Special Agent with the U.S. Customs Service, Office of Investigations in Philadelphia. From 2002-2003, Marlon worked as Senior Special Agent for U.S. Customs Service, Office of Internal Affairs in Chicago, Illinois. Upon the formation of the Department of Homeland Security in 2003, he was transferred to the Department of Homeland Security, U.S. Immigration and Customs Enforcement, Office of Investigations, in Washington, D.C., where he currently works as a Supervisory Special Agent.