Gunshot wounds on all four family members who died after being discovered in their burning house in Long Branch Tuesday lead to the conclusion that a murder-suicide took place, and that the fire was intentional.

FIrefighters and neighbors at a fire in Long Branch (CBS New York)

The Monmouth County Medical Examiner's office determined that Lyndon "Shane" Beharry, 35, shot Amanda Morris, 29, and their sons Brendan, 7, and Brian, 4, then turned the gun on himself.

Causes of death have yet to be pinpointed, and will take several weeks, according to the office of acting Monmouth County Prosecutor Chris Gramiccioni.

All four died at Monmouth Medical Center in the city after being removed from the second-floor bedroom of the burning house.

Autopsy results showed injuries consistent with gunshot wounds on all four, with Lyndon Beharry's determined to be self-inflicted, authorities said.

The investigation is continuing through the Long Branch Police and Fire Departments and the Monmouth County Prosecutor's and Fire Marshall's offices.

Information that can help the probe can be given to Monmouth Detective Pamela Ricciardi, 1-800-533-7443, or Long Branch Detective Rich O'Brien, 732-222-1000.