(CBS) NEWARK There is a massive manhunt in Newark, N.J. for the cold-blooded killers who executed three people. The victims, who include two Delaware State University students were lined up against a wall and shot behind the Mt. Vernon School early Sunday.

Police say the four friends were just listening to music outside Mt. Vernon School when they were apparently chosen by the killer or killers at random. They were shot in the head execution style.

Politicians and law enforcement officials admit they don't have any answers that will satisfy the many devastated families who want more action.

“We were told each were lined up,” said Beverly Reid, the great aunt of two of the victims. “Oh its unbearable just the thought.”

Reid is related to two of the victims but knows all four. Ofemi Hightower, Deshawn Harvey and Terrance Aeriel were shot and killed execution style. Shot and injured is Terrance's sister: 19-year-old Natasha Aeriel.