Two Palestinian terrorists attacked a synagogue during morning prayers and left death and destruction in their wake.

Four people are confirmed dead and at eight others injured when the Muslim terrorists charged into the synagogue with meat cleavers and at least one gun Tuesday morning.  The terrorists then died in a gun battle with police after their attack on innocent civilians.

The Muslim terrorists were identified as cousins Ghassan and Uday Abu Jamal.

Three of the dead held joint U.S.-Israeli citizenship.  The fourth held dual British-Israeli citizenship.

“The gentleman I tended to first still had his tefillin on. There were also women there who didn’t know where their husbands were, and others who didn’t know where their father was. Those were most likely the ones killed. It was very hard to deal with, very upsetting,” a first responder told Haaretz newspaper.

“I looked up and saw someone shooting people at point-blank range. Then someone came in with what looked like a butcher’s knife and he went wild,” Yosef Posternak, who was in the synagogue praying when the attack started, told Israel Radio. “I saw people lying on the floor, blood everywhere. People were trying to fight with [the attackers] but they didn’t have much of a chance.”

U.S. Secretary of State John Kerry quickly condemned the attack.

“Innocent people who had come to worship died in the sanctuary of a synagogue,” a visibly upset Kerry told reporters.  “They were hatcheted, hacked and murdered in that holy place in an act of pure terror and senseless brutality and murder. I call on Palestinians at every single level of leadership to condemn this in the most powerful terms. This violence has no place anywhere, particularly after the discussion that we just had the other day in Amman.”

Israeli Prime Minister Benjamin Netanyahu vowed Israel would “respond harshly” to the attack.