"The newsletter bulletin, obtained by the Counter Extremism Project, a terrorism watchdog, appeared to mock the American news media for “holding its breath” while waiting for ISIS to claim the attack...
“Unlike other attacks in the past, where ISIS has released a claim of responsibility for the attack, in this case, the group has stated that the attacker was inspired by ISIS propaganda messaging but does not claim they had a direct relationship,” said Joshua Fisher-Birch, a researcher at the Counter Extremism Project.
The ISIS statement’s emphasis on the importance of people who translate and share ISIS content, Mr. Fisher-Birch said, “speaks to the efforts to continue the spread of the group’s official messaging and unofficial propaganda efforts made by supporters.”"