John was raised in Beaver County, Pennsylvania, and graduated from Center High School in 1967. He earned a bachelor’s degree in political science from Duquesne University and, guided by a strong sense of duty and leadership, chose a life of service by enlisting in the U.S. Marine Corps in April 1971.

In 1983, John served with the 24th Marine Amphibious Unit and deployed from Camp Lejeune, North Carolina, to Beirut, Lebanon, as part of a multinational peacekeeping force. The mission sought to stabilize a region torn by conflict between Muslim and Christian factions. On the morning of October 23, a suicide bomber drove a truck packed with 12,000 pounds of explosives into the Marine barracks. The explosion leveled the four-story building and killed 241 American service members, including John, and seriously wounded 80 others. It was one of the deadliest days for the Marine Corps since World War II.

John’s legacy lives on through his family, friends, and fellow Marines. His name is engraved on the Beirut Memorial at Camp Lejeune, a solemn tribute to the 241 Marines, Sailors, and Soldiers who gave their lives that day.