Al Aqsa Martyrs Brigades, the military wing of Palestinian Authority President Mahmoud Abbas’ Fatah Party, took responsibility for the attack, calling it revenge for Israel’s treatment of Palestinian prisoners, including two who recently died while in custody.
The group called the killing a “gift” to Palestinian prisoners and promised more operations in the future.
Abbas, who has repeatedly condemned the use of violence and vowed to prevent another uprising as long as he is in power, did not immediately comment on the attack.
Thumbs up to the LA Times for noting this. During the previous intifada, Big Media downplayed the significance of the Brigades-Fatah-Arafat relationship, a triangle which the PA eventually acknowledged.
Source material can be found at this site.