The Dead Sea Scrolls, the revisionists claim, were actually hidden in the caves of Qumran by Jews fleeing the devastation of Jerusalem during the Roman suppression beginning in A.D. 66. I suppose that is plausible, especially considering Qumran is a stones throw from Masada. But I am with the majority, it seems more likely it was some kind of monastery.
I saw a documentary which speculated the mass suicide at Masada was motivated by knowledge of the nearby scrolls. A sacrifice to protect the scrolls from being destroyed.
Seemed sounded plausible, but then I'm not a historian.