As far as I recall, that was the bomb that was not meant to go off, and it actually was found not to have gone off. It was a scare tactic. Yet the israeli Eastern Jewish characteristics came out in the sentencing, and in the extrememly harsh treatment that he and the others with him are suffering. I read in an israeli paper years ago, maybe this one (doubtful) probably Arutz7, that the Shabak would not let him be parolled at any time. He really must have annoyed them, to make them so malicious and vindictive. Probably by being alive.