Trump shooter was a straight-A student with a clean disciplinary history, except for chewing gum, school records show [Video]

The 20-year-old man who attempted to assassinate Donald Trump at a rally in Pennsylvania Saturday had good grades and barely any disciplinary issues in school, records obtained by Business Insider show.

Thomas Crooks‘ clean academic record does nothing to shed light on a possible motive for shooting at the former president. Crooks was killed by a Secret Service sniper shortly after firing shots that hit Trump and three rallygoers and killed one of them, Corey Comperatore.

Crooks was a straight-A student during his senior year at Bethel Park High School, graduating with a 4.87 grade point average, according to his academic records, which BI obtained through a public-records request. He took four Advanced Placement classes that year — calculus AB, macroeconomics, statistics, and US government and politics — in addition to courses in English, programming, personal finance, and business.

The only disciplinary infractions in Crooks’ Bethel Park School District records show he was caught chewing gum in class twice in …