Shamir was prime minister when the terrorists were killed, probably under his orders because terrorists were being freed in prisoner exchanges. He stated that terrorists should be killed immediately, rather than go free later. Peres twisted the rule of law. Peres is also responsible for the beginning of settlements in the Shomron.
PM: We'll surround ourselves with fences in defense against the wild beasts around us (Haaretz)
from the article: The Shin Bet scandal that never died