Targeted assassinations are based on information received from the Shabak (aka Shin Bet). In practice, it is this security service that makes the decision to kill people – acting as gatherer of the information, the assessor of it, and the judge at the same time. No independent analysis of the information, no review, no judicial process of any kind. Questioning the Shabak almost amounts to treason, no politician and no journalist would dare to do so, even if he were so inclined- which he or she is not.
After the Shabak has decided to kill somebody, this is brought to a tiny group of men: the Prime Minister, the Minister of Defense, the army Chief of Staff and perhaps the officer commanding. Nobody with an independent outlook.
Did any of these people ask the relevant questions? I doubt it.