Adnan al-Damairi of the Palestinian security forces, says an investigation has revealed that Raed Sualha, 15, was killed by his own family, Israel's Ynetnews reported Friday.
Al-Damairi says at first officials thought the boy had been the victim of a domestic dispute but later learned that was not the case.
He says the boy was tortured before being hanged.
Authorities are holding the boy's relatives who have confessed to the crime.
Notable deaths of 2014 [PHOTOS]