This was clearly not a Mossad operation. Just think for a second, if you were the Mossad would you give your agents fake passport with ISRAELI citizens names on it??? Wouldn't it be better to give them fake passports with Irish, etc names that no Israeli uses?
Gunmen kill 1, wound 13 at Sri Lanka election campaign (AP)
from the article: At least five Israelis 'share names with Dubai hit squad suspects'