Neil Carpenter was 61 when he was killed on July 19, 1995, in a mass shooting at the Piper Technical Center, a Los Angeles city office building. The attack left four victims dead — Neil Carpenter, Anthony Gain, James Walton, and Marty Wakefield — after a city employee, 42-year-old Willie Woods, opened fire with a 9mm Glock following a dispute over a negative performance evaluation.

According to reports, the shooting began on the building’s ground floor and continued in the basement as Woods targeted supervisors. Witnesses said Woods had a history of temper issues and had displayed aggressive behavior at work; he argued with supervisors that day, left the room, then returned with the firearm. Police apprehended Woods as he attempted to flee and he surrendered without further incident.

Woods was charged with multiple counts of murder; in February 1997 he was sentenced to life in prison without the possibility of parole. The deaths prompted scrutiny of workplace safety and how employee grievances and warning signs of violent behavior are handled.

If anyone knew Neil Carpenter or has information about him or that workplace before July 19, 1995, please share what you know.