I was on twitter and saw that today was the 21st anniversary of the Columbine school massacre so I was curious as to what was the first modern school shooting in america and I was shocked to learn it was commited by a girl.
Her name is Brenda Ann Spencer who was 16-years old when she opened fire on the San Diego Grover Cleveland Elementary in 1979 from her house with a .22-caliber rifle injuring 8 children, a police officer and killing the principal and a custodian who was trying to save the the principal.
Spencer, the original high-school rampager, pleaded guilty to first-degree murder and assault with a deadly weapon and was sentenced to 25 years to life in prison. When asked why she did it, she said the often quoted: "I just don't like Mondays." At the time she also told negociators, "It was a lot of fun seeing children shot."