evidence: As investigators analyze what led 20-year-old Thomas Matthew Crooks to try to assassinate former president Donald Trump – and how Crooks was able to fire at the former president at a heavily patrolled event on July 13, 2024, one thing is clear, according to Department of Homeland Security Secretary Alejandro Mayorkas. [...] Crooks’ attack on Trump wasn’t like the Pulse nightclub mass shooting in 2016 or other mass shooting events that we have seen over the last several years. Crooks was seemingly trying to just kill Trump, and tragically, some of the rounds hit other people. Most of the domestic attacks we see in the U.S. are almost always advanced by a single individual, like Crooks. Going after a former president is the most extreme end of that threat spectrum, but there have been several other attacks against sitting presidents, former presidents or presidential candidates. This goes back to the 1865 assassination of President Abraham Lincoln. In that case, it was also just one person who shot Lincoln.