The perpetrators, Khalid al-Muhamra and Muhammad Ahmad Moussa Mahmara, cousins belonging to the Mahmara family from the town of Yatta in the Hebron area in the West Bank, both 21,[6] operated on their behalf and did not revice aid, instruction pledge allegiance to any group.[7] The two did not have any previous criminal record[8] and were arrested by the police following the attack.[9] An investigation by the Israel Security Agency revealed the shooters were influenced by propaganda videos of the Islamic State of Iraq and the Levant.[10] Ayash Musa Zayn, their friend from Yatta helped the two with the planning of the attack and secured their weapons.[7] The two were also assisted by Salim Mognam (23) of Yatta, who helped them infiltrate Israel through a break in the separation barrier.[10]