The family of a police officer slain by a Lebanese infiltrator in 1979 is asking Israel's Supreme Court to stop release in a prisoner swap.

Samir Kantar is serving multiple life sentences for one of the most gruesome attacks in Israeli history. He was convicted of shooting a policeman and then killing an Israeli man in front of his 4-year-old daughter before beating her to death. Kantar denies killing the girl.

"Don't release Kantar. He is a despicable mass murderer, and Israel will be sorry in the end," the slain policeman's daughter, Keren Shahar, told reporters on Monday.

Israel approved Kantar's release as part of an exchange with Hezbollah. Israel is to receive the bodies of two Israeli soldiers captured by Hezbollah in 2006.