According to investigators and family, the death of 21-year-old Shane Montgomery, who had been missing for a month and a half, was likely an accident.

After five weeks of scarce leads, the Irish American college student was found in Pennsylvania’s Schuylkill River. A proud Irish American, Shane was identified by the Celtic cross tattoo across his right shoulder.

Needless to say, the last five weeks have been a nightmare for Shane’s loved ones; his parents Karen and Kevin Montgomery are overwhelmed and grateful for the community’s support, Shane’s uncle Kevin Verbrugghe said.

There was a $65,000 reward for Shane's return, and signs were posted up miles beyond his town of Manayunk, Philadelphia. Many vigils were held and almost everyone donned a green ribbon, a symbol for missing children and Montgomery’s favorite color.

A green Celtic cross and bouquet of roses were placed at the head of the Schuylkill River.

The Garden State Underwater Recovery Unit, a team of seasoned expert volunteers, pulled his body from the river as the family watched from the side. Shane’s brother, Thomas LaCorte, was the first of the family to see a diver's hand emerge from the water during the final search, a sign that Shane had been found.

Though the autopsy report and death certificate with reason and manner of death will not be released until Monday, Verbrugghe said that the medical examiner had ruled it as accidental.

Shane’s body was found after a month and a half; investigators say he did not commit suicide.