In this May 31, 2002 file photo, Palestinian leader Yasser Arafat pauses during the weekly Muslim Friday prayers in his headquarters in the West Bank city of Ramallah. (AP Photo/Lefteris Pitarakis, File) by John HeilprinAssociated Press Writer RAMALLAH, West Bank (AP) — Yasser Arafat's mysterious 2004 death turned into a whodunit Thursday after Swiss scientists who examined his remains said the Palestinian leader was probably poisoned with radioactive polonium.
