France\'s interior minister said that police do not know the identity of the man behind Monday\'s deadly attack on a Jewish school, but quoted a witness saying the attacker was carrying a video camera. \"Today, we don\'t know who he is,\" Claude Gueant told Europe 1 radio on Tuesday. \"For now, we carry on working. We\'re no further than that,\" he said, adding that \"a witness saw a small video camera around the killer\'s neck.\"