Kevin James Loibl
This one just flat-out isn’t funny.
Kevin James Loibl—raised by a violent, abusive mother who eventually died of an aspirin overdose (possibly purposefully, at his urging), then lived with his father’s violent girlfriend, dropped out of college due to a World of Warcraft obsession, had to be maneuvered around departments at work due to severely bad social skills, became infatuated with a celebrity to the extent that he believed them to be soul mates, lost 50 pounds, got LASIK surgery, got his teeth whitened and hair implants, and converted to Christianity to impress her—was somehow able to procure two handguns, one of which he used to shoot Christina Grimmie the times, and the other to shoot himself in the head.
Chuck, Elizabeth; Gemma DiCasimirro; Molly Roecker; Jillian Sederholm. “Gunman Who Killed ‘The Voice’ Singer Christina Gimmie Had Two Weapons, Ammo, Knife: Police.” NBC News. NBC Universal, Inc. June 11, 2016.
Read Florida Man: Battle of the Five Meth Labs: A Love Story here.
Lee Harper Oswald 
Sock it to me...