Article continues below advertisementThe lover of Charlie Kirk's alleged assassin, Tyler Robinson, has reportedly gone missing.In the latest shocking twist following Kirk's murder, Lance Twiggs, 22, has retreated from the public eye and seemed to completely vanish from his hometown of St. George, Utah.According to federal agents, Robinson's partner - who is reportedly in the process of transitioning from a man to a woman - has kept an extremely low-profile in the six weeks since Kirk was shot dead in the neck at age 31.