One year after Thomas Crooks tried to kill President Trump, here's what's known about himOne year ago on Sunday, Thomas Crooks tried to assassinate President Trump at a campaign rally in Butler, Pennsylvania. A monthslong investigation by CBS News reveals the broadest portrait yet of the lonesome young student who tried to kill Mr. Trump. CBS News' Scott MacFarlane reports.
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One year after Thomas Crooks tried to kill President Trump, here's what's known about him