Altoona police say a man who was walking along Highway 12 early Sunday morning has died of the injuries he suffered when he was hit by an S-U-V. The driver has been identified as 35-year-old Brendan Barkovich. Authorities tracked him down and took him into custody later the same day. Officers had been called to the scene shortly after 5:15 a-m in Altoona. Barkovich is being recommended for charges of hit-and-run causing death and drug possession. Highway 12 was closed to traffic for more than four hours Sunday.