A lokacin da Zwaiter ya kasance wakilin PLO a Italiya, kuma yayin da Isra'ila ta yi iƙirarin cewa shi memba ne na Black Satumba kuma yana da hannu a cikin wani makircin da aka yi wa jirgin sama na El Al, 'yan kungiyar PLO sun yi jayayya cewa ba shi da alaka da shi. Abu Iyad, mataimakin shugaban PLO, ya bayyana cewa Zwaiter yana da "kwakwalwa" a kan ta'addanci. Burin na biyu na Mossad Bashar Mahmoud Hamshari, wakilin PLO a Faransa. Isra'ila ta yi imanin cewa shi ne shugaban Black Satumba a Faransa.
wata alama ta fashewa ta hanyar layin waya