Richard Lawrence

Assassanation
Richard Lawrence was the very first assassin in American history. He attempted to kill 7th President Andrew Jackson at East Portico on January 30th, 1835. He had been stalking Jackson, but couldn't get close to him. While Jackson was leaving a funeral, Lawrence pulled out two perfectly working pistols and tried to shoot Jackson. In a stroke of luck, both guns misfired and Jackson almost beat him to death with his hickory cane.

Motive
Lawrence was just insane. He belived he was RIchard III for some reason, and belived Jackson killed his father and prevented him from reaching his true fortune.