Sure there is. It won’t deter anybody. Those who want to spill blood want to spill blood. Look at all the suicide bombers in the Mid East. They don’t get a bunch of press coverage, they still blow themselves and other people up. Some might want infamy, but what they want most is to kill.
They do get lionized in their own media and society where terrorists are celebrated as role models.
My point holds: evil needs to get affirmation to be copied by others. Otherwise evil wouldn’t spread to the extent that it does.