At the time of publication, the Haaretz story included this claim by the al-Aqsa Martyrs Brigade. You are correct that it is not part of the story any longer, but The Jerusalem Post published this claim: "Palestinian media on Saturday reported that a faction of Fatah's al-Aqsa Martyrs Brigade claimed responsibility for the terrorist attack in Itamar which five family members were stabbed to death."
Depending on the news source and the strange evolution of the story, I've seen several claims being made. Shortly before we returned from Israel on Friday, there was conjecture that it might've been a Thai immigrant worker, but that has not been proven. It's all very unwieldy and hard to confirm, which is why it is just as dangerous to posit that it may have been a neighbor within the settlement.
And, if you been reading this blog over the past two weeks, I am certain you'd agree that we are anything but anti-Palestinian or anti-Israeli. Read for yourself. Our body of work stands on its own merits.
Thanks for calling my attention to the deleted reference so that I can source.
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