DALLAS—Ty Jordan, a star freshman running back for the University of Utah, died at a Dallas-area hospital after accidently shooting himself, authorities said Sunday. University officials announced Jordan’s death Saturday, a day after he was named Pac-12’s newcomer of the year, but did not release details. Jordan, 19, died in an emergency room at a hospital in Denton around 10:45 p.m. on Christmas Day, according to medical examiner’s records. Police officers had responded about an hour earlier to reports of a shooting at a home in Denton, a city 40 miles northeast of downtown Dallas. The officers found a man had accidently shot himself in the hip and began giving first aid, Denton police spokeswoman Allison Beckwith told The Associated Press Saturday. She said the man later died at a hospital and that investigators did not know how he came to shoot himself. Beckwith declined to identify the man by …