4½-hour standoff with police, garbed in a ninja's outfit and gas mask. He was convicted of murder and sentenced to death. November 14, 1991, Royal Oak, Michigan: In the Royal Oak post office shootings, fired postal worker Thomas McIlvane killed four and wounded five before killing himself. June 3, 1992, Citrus Heights, California: Roy Barnes, a 60-year-old employee, went to the workroom floor at the Citrus Heights post office armed with a .22-caliber pistol and fatally shot himself in the heart in front of his coworkers. May 6, 1993, Dearborn, Michigan: Postal worker Larry Jasion killed one and wounded three others before killing himself at a post office garage. May 6, 1993, Dana Point, California: Mark Richard Hilbun, a former postal employee, killed his mother and her dog in their home. He then made his way to the post facility where he used to work and shot two postal workers, killing one and injuring the other. It was the beginning of a three-day rampage in which he injured several other people, prompted by Hilbun's dismissal for stalking another co-worker. May 4, 1994, Pittsburgh, Pennsylvania: Postal employee James A. Paulano was accidentally killed in a drive-by shooting. March 21, 1995, Montclair, New Jersey: Christopher Green, a former postal employee, killed four people, including two employees, and wounded a fifth at the Fairfield Street branch post office. While this is a postal killing, the primary motivation appears to have been debt payment, and there was no indication that the former employee was mentally disturbed as a result of his former postal work. July 10, 1995, City of Industry, California: 25-year postal clerk Bruce Clark punched his supervisor in the back of the head following an argument at the City of Industry mail processing center and left the work area. About ten minutes later, he returned with a brown paper bag. Upon being asked by his supervisor what was in the bag, Clark reportedly pulled out a .38 revolver and shot the supervisor twice at close range, once in the upper body and once in the face, killing him. Two employees reportedly took the gun away from Clark and held him until police arrived. Seventy-five postal employees reportedly witnessed the shooting. December 19, 1996, Las Vegas, Nevada: Former employee Charles Jennings went to the parking lot at the Las Vegas postal facility and fatally shot a labor relations specialist. Mr. Jennings reportedly indicated