Memphis Police said the victim was a 21-year-old man. According to investigators, he was shot during a verbal altercation with the driver of a dark-colored SUV, possibly a Chevy Suburban.

The suspect in Tuesday's shooting remains in jail on a charge of aggravated assault mass shooting, with bond set at $600,000.

The shooting at Wilmer-Hutchins High School earlier this week unfolded in less than two minutes and began when another student let the armed suspect inside through a locked side door, Dallas ISD Police Chief Albert Martinez confirmed Thursday.