PHILADELPHIA: After waiting more than four decades to clear his name in a friend’s 1980 killing, Subramanyam Vedam was set to walk free from a Pennsylvania prison this month. Vedam and Thomas Kinser were the 19-year-old children of Penn State University faculty. Vedam was the last person seen with Kinser and was twice convicted of killing him, despite a lack of witnesses or motive. In August, a judge threw out the conviction after Vedam’s lawyers found new ballistics evidence that prosecutors had never disclosed. As his sister prepared to bring him home on Oct.