Looking at articles on other VNSAs Violent Non State Actors there does not appear to be a clear precedent for the inclusion of casualty information in the lede  The articles on organizations such as FARC the Tamil Tigers Hezbollah the Taliban the Izz adDin alQassam Brigades military wing of Hamas and alQaida do not include casualty estimates in the lede whereas the article on ETA does  Given the controversy surrounding its inclusion in the lede I suggest moving it to the body of the article  In fact the more articles I read the more it becomes apparent that it is not customary to include such information in the lede  Ive been browsing through httpenwikipediaorgwikiTerroristorganizations and have yet to find any aside from the mention of the  killed in the Omagh Bombing under the RIRA article