Police are investigating after a woman was found dead in a driveway northeast of downtown San Antonio over the weekend. A passerby called the police after discovering the woman's body in front of a home on Post Avenue around 7 a.m. Saturday. Neighbors report hearing gunshots a few hours before the woman's body was found. Officers are treating the case as a possible homicide. The medical examiner is trying to identify the woman, and police are looking for a suspect.