Who was responsible for the McDonald's Massacre in San Ysidro, California?

The McDonald's Massacre, which took place in San Ysidro, California, on July 18, 1984, was perpetrated by James Huberty. He entered a McDonald's restaurant and opened fire on patrons, resulting in the deaths of 21 people and injuries to many others before he was ultimately shot by police. Huberty's actions were a shocking act of violence and highlighted issues regarding gun control and mental health.

The other individuals mentioned in the choices were involved in different notable incidents: Eric Harris and Dylan Klebold were the perpetrators of the Columbine High School shooting, while Charles Whitman conducted the Texas Tower shooting in 1966. Each of these events was tragic in its own right, but they are not related to the McDonald's Massacre, making James Huberty the only correct answer in this context. Understanding the details and context of these violent incidents helps to grasp the broader implications they have had on society and law enforcement policies.