Time: Wednesday Jul 18, 1984
Place: San Diego, California, U.S.
Details: The San Ysidro McDonald's massacre was an act of mass murder which occurred at a McDonald's restaurant in the San Ysidro neighborhood of San Diego, California on July 18, 1984. The perpetrator, 41-year-old James Huberty, fatally shot 21 people and wounded 19 others, before being killed by a police sniper approximately 77 minutes after he had first opened fire. The San Ysidro McDonald's massacre was considered the worst mass shooting in the United States (in terms of number of fatalities) until 1991 and remains the eighth deadliest mass shooting in American history.