Palestinian Authority news agency reports Abu Daoud dead at 73 . President Abbas sends flowers to Daoud 's family . Palestinian terrorists killed 11 Israeli athletes at the 1972 Munich Olympics . ` ` ' September '' was viewed as a triumph in Arab world .
Palestinian Authority news agency reports Abu Daoud dead at 73 . Mahmoud Abbas sends condolences to Daoud 's family . Palestinian terrorists killed 11 Israeli athletes at the 1972 Munich Olympics . `` Black September '' was viewed as a triumph in Arab world .