Two of the couple's children were also hurt in the attack near Beit Hagai in the West Bank, which followed the slaying of two Palestinians by security forces.
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Josh Allen, of South Orange, a high school math teacher and father of a 4-year-old, fainted during an orientation session at the camp and never regained consciousness.
The 17-year-old attacker, who jumped over a security fence to enter the home, was killed by civilian guards.
Labour's leader, who is facing calls to resign over Brexit, made the analogy while unveiling a report on anti-Semitism within the British party, which Jewish critics said was vague and inconclusive.
The Grammy-winning Jewish singer-songwriter, still touring at 74, says "Showbiz doesn’t hold any interest for me."