It was a shot from above that killed would-be assassin Thomas Crooks at a July campaign rally where he almost murdered former President Donald Trump. But it was a shot from below that took Crooks out of action first, according to a congressional report made public Thursday. And that shot, fired by a local law enforcement sniper, was incredible. The report was written by Louisiana Republican Rep. Clay Higgins. It found that Crooks fired eight shots, killing a firefighter who attended the Butler, Pennsylvania, rally with his family, critically wounding two others, and coming within a hair’s brea…