Investigators have pieced together the final moments of Donald Trump’s rally shooter Thomas Matthew Crooks. The 20-year-old was found with a remote control detonator in his pocket and reportedly locked eyes with a secret service sniper through his rangefinder just before his death, RadarOnline.com can reveal. As this outlet reported, Crooks used a ladder to scale a building nearby the Trump rally taking place in Butler County, Pennsylvania. He then opened fire with an AR-15 style rifle, killing one attendee and nearly missed the ex-president before he was killed by law enforcement snipers. New…