Worst school massacre in US history happened 95 years ago

As we continue to learn more about the elementary school shooting in Uvalde, Texas that left 19 children and two adults dead, the massacre stands as a grim reminder of the country's worrisome history of deadly school attacks.

The worst school massacre in U.S. history happened 95 years ago in Bath Township, Michigan, a small rural community about 20 minutes northeast of Lansing.

On May 18, 1927, a total of 45 people were killed, including 38 children, and another 58 were injured when an angry school board member detonated explosives at Bath Consolidated School.

The perpetrator, Andrew Kehoe, spent months before the attack placing dynamite under the flooring of the school, according to Encyclopaedia Britannica. Kehoe, a local farmer, was angry about taxes used to fund the school, The Washington Post reported.

The north wing of the school was destroyed in the explosion. Rescue workers later found an additional 500 pounds of explosives in the south wing that had failed to detonate, suggesting Kehoe intended to blow up the entire school, according to Encyclopaedia Britannica.

Approximately half-an-hour after the explosion, Kehoe drove to the school in his truck, which was loaded with dynamite. He fired a rifle into the back seat and the truck blew up, killing himself and others.

There have been dozens of shootings and other attacks in U.S. schools and colleges over the years, but the number of victims generally stayed in the single digits. The Associated Press noted that it wasn't until the massacre at Colorado’s Columbine High School in 1999 that the number of dead mounted to 10 or more.

The deadliest school shooting happened at Virginia Tech in April 2007, when a 23-year-old student killed 32 people before taking his own life.

The December 2012 shooting at Sandy Hook Elementary School is the second deadliest. A total of 28 people were killed, including 20 children.

Tuesday's shooting at Robb Elementary School is the third deadliest.