ALIQUIPPA, Pa. — A Pennsylvania prosecutor says investigators are searching surveillance video and cellphones for clues in the shooting death of a former schoolteacher in her mother's driveway.

Authorities say 33-year-old Rachael DelTondo was shot multiple times Sunday in Aliquippa (al-uh-KWIH'-puh), in suburban Pittsburgh.

Television station KDKA quoted unidentified investigators as saying they believed the woman knew her attacker and that the killing was likely a "crime of passion."

Beaver County District Attorney David Lozier is declining to comment on a possible motive or whether she may have known the gunman.

DelTondo was suspended in November from a cyber school. Officials there had received an anonymous email containing a police report saying DelTondo had been found in a parked car with a 17-year-old former student. No charges were filed, and Lozier called the report's circulation "a personal vendetta" against DelTondo.