He was a leader of the Al Aqsa Brigades in Jenin, and was convicted for shooting, setting explosive devices, and attempted murder.
His 20 year sentence ended in May, and he was released, to a large celebration with his fellow Fatah terrorists.
Now, a month later, justice was served - but in an unexpected way.
43-year old Khalil Musa was killed on Saturday during a family quarrel in Jenin.