They murdered him because he rightfully refused to sign camp david "peace" accords.
After his death, what did Palestine get? A coward in Mahmoud Abbas that would sign everything and accomodate every Israeli demand while getting nothing in return.
Arafat, like Hamas today, understood that the only way is to make it costly for Zionist regime to continue their crimes. If they take more land, then inflict pain so they think twice.
Unfortunately Abbas do not subscribe to this theory, but instead bend over backwards to make Israel and USA pleased while more and more of Palestine is eaten away by settlers, which is giving absolutely NO incentive to Israel to change status quo.
Current Palestinian Authority probably collaborated to have Arafat murdered. How else did Israelis get in? Someone had to be in on the inside. Its sickening