Former American Idol Contestant Killed
07/26/2009 AT 02:00 PM EDT
Cohen, 25, of Allentown, Pa., was found unresponsive on a street about 300 yards from where her car was parked in a lot, says Deputy Chief Michael Mohel of the Ocean County Prosecutor's Office.
Cohen auditioned for Idol in seasons 7 and 8, gaining attention for her tirade against judge Simon Cowell, who rejected her performance.
First aid workers took her to Community Medical Center in Tom's River, where she was pronounced dead at 6:35 a.m., he says.
An autopsy performed Saturday afternoon by the office of the Ocean County Medical Examiner found multiple traumatic chest and abdominal injuries, and a closed head injury, Mohel says.
"There was evidence that her body was impacted by a vehicle," he says, noting the death is classified as a homicide.
No arrests have been made, says Mohel, who would not say where Cohen was prior to her death due to the ongoing investigation.
Watch a YouTube clip of Cohen's Idol audition.