Who cares if Sharon had him poisoned, he died of AIDS or any other illness the man has been dead for 9 years and they can't bring him back so what is the point of this whole investigation? The ONLY thing this can possibly achieve is killing the so called peace process and giving strength to the likes of Hamas. Lets assume he was poisoned which is unlikely because Bush told Sharon specifically hands off Arafat and the man was locked up in his compound so was becoming irrelevant but if it had turned out to be poison and it was made public the palestinians would forbid Abbas from holding talks and support would grow for Hamas because its one thing to kill a terrorist something else to kill Arafat. Even this report of inconclusive will lead to more conspiracy theories and objection to Abbas holding any talks.
from the article: Yasser Arafat’s underwear tells experts little about his death