A man who allegedly shot his ex-girlfriend in the face with a sawed-off shotgun May 16 was charged Tuesday with murder. Juan Carlos Diaz-Arevalo, 25, was also charged with the purchase, transfer, possession or use of a firearm by a restricted person. Diaz-Arevalo, who is in custody in the Salt Lake County Jail, has a prior conviction for possession of a weapon, a third-degree felony. About 7:15 p.m. May 16, 22-year-old Lindsey Fawson pulled into the driveway of a home in the 12000 South block of 700 West in Draper. Her 3-year-old son and older sister, Stacey Fawson, were in the car. Diaz-Arevalo walked up to the blue 1995 Pontiac and confronted Fawson about who owned the car, police said. The altercation escalated when Diaz-Arevalo reached in through the window, and Fawson and her sister tried to push him out. Fawson opened the door and "mule kicked" Diaz-Arevalo, who then allegedly shot her once in the face. No shell casings were recovered from the scene. Police said Diaz-Arevalo was a known methamphetamine dealer. - Lisa Rosetta