Thomas William Manning was an American Marxist militant convicted of killing New Jersey State Police trooper Philip J. Lamonaco during a traffic stop in 1981. Along with Raymond Luc Levasseur, he co-founded a small revolutionary Marxist group known as the United Freedom Front (UFF), which bombed a series of US military and commercial institutions and committed bank robberies in the 1970s and early 1980s. He remained a fugitive for three years after killing the state trooper, despite being the subject of a large manhunt – including appearing on the FBI Ten Most Wanted Fugitives list. He remained active in UFF bombings and bank robberies until the arrest of all five remaining other UFF members on November 4, 1984, which was followed by the arrest of Manning and his wife on April 24, 1985.