Less than an hour after a priest read him his last rites, the Skowhegan teenager who was shot in the head with a pellet gun over the weekend began moving, and is expected to survive his brain injury, his mother said. Charles “Charlie” Quimby, 19, remained in stable condition at Eastern Maine Medical Center in Bangor on Tuesday, with the pellet that entered through his right temple and pierced his brain still lodged in his head, said his mother, Lauri Quimby. “I know my son, he’s really strong,” Lauri Quimby, 45, said.