The Emperor of Mankind
Currently the galaxy's spookiest paraplegic
ISIS is already on the brink of defeat. They are pathetic. Sure, they will keep taking credit for cowardly terrorist attacks here and there. But, the "caliphate" is going to be nothing more than a memory in a couple of years at most.
Exactly. They'd take credit for someone catching a cold if they thought it'd make people more afraid of them. Any claims they make about being responsible for the Manchester attack are less than meaningless.