not particularly well known in terms of isis leadership circles. a name the united states say was behind the money. was behind the oil. was used to make isis so much of its money and increasely involved in that military operation. we don t know his real name. abu sayyaf means the father of sayyaf and his wife who was captured who was killed in this raid umm means the mother of sayyaf. u.s. will look to provide why this man was so important because they endured an enormous risk in going to get to him. we are told this was a capture mission, not a kill mission. had it been a kill mission they could have simply used a drone. they were after intelligence and they were after the things he knew and the things his computers and phones perhaps had on them as well so complex indeed they decided to take this risk because they flew into one of the most dangerous parts of isis territory deep inside of syria. the oil field known to be a isis military base had a 3 to 5