 on the Republican presidential nominee on Saturday. I'm Charles de la Desma. Three days after the attempted assassination of Donald Trump, the 20-year-old man who came close to killing the former president remains an enigma. Neighbors described Thomas Matthew Crooks as a loner with few friends. Classmates at Bethel Park High School said Crooks was smart but standoffish, often seen wearing headphones and preferring to sit alone at lunch looking at his phone.