EDISON, N.J. (CBSNewYork) -- Prosecutors in Middlesex County, N.J., have determined that the 15-year-old boy who killed himself and three others when he crashed into another vehicle was committing suicide.
The teen, who was driving a 1995 Honda Civic, collided head-on with a Nissan Altima that was being driven by 46-year-old Mohammed Zia, authorities said.
A passenger in the Altima, 35-year-old Ali Behzad, and the teen, whose name has not been not released, were both pronounced dead at the scene. Zia was taken to a hospital but died there a short time later.
On Wednesday, the Middlesex County Prosecutor's Office and Edison police said the specific cause of the crash remained under investigation. But the crash has been classified as a "suicide-homicide."
A source told CBS 2 the teen had a suicide note written on his body.
Moazzam Zia, who was visiting the crash site Tuesday, told Champion the victims were his uncles.
"They went to go get coffee, and after that they just never came back," he told CBS 2's Don Champion. "I'm holding myself up right now. I go to my house and see his clothes just laying there and see everything that he was going to wear today.
"God took the biggest part of our family away today ... two of them at once."
Investigators spent hours at the scene of the crash taking photos and trying to piece together what went wrong. They say the teenage driver is to blame for the accident.
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