Israeli authorities are still determining the death toll in Kfar Sa'ad. The documents were found on the bodies of Hamas terrorists by Israeli first responders and shared with NBC News. Hamas maps of Kibbutz Kfar Aza, Nahal Oz, and Alumim recovered from the bodies of Hamas by Israeli first responders. The detailed plan to attack Kfar Sa'ad is part of a trove of documents that Israeli officials are analyzing, according to one source in the Israeli army and one in the government. Surveillance video of Hamas terrorists entering a kibbutz on Oct. 7 shows tactics similar to those laid out in the documents obtained by NBC News.