On Monday, immediately after the Las Vegas massacre in which the worst mass shooting in American history took place, the terrorist group ISIS claimed responsibility for the attack. As The Independent reported:
A statement published by the group's Amaq propaganda agency claimed the attacker was a “soldier of the Islamic State.” "The Las Vegas attacker is a soldier of the Islamic State in response to calls to target coalition countries,” it said. Isis also claimed the gunman “converted to Islam several months ago”, without providing more details.
U.S. officials said there was no evidence the shooter was linked to ISIS:
As Paul Cruickshank, the editor-in-chief of the CTC Sentinel, and a CNN terrorism analyst, pointed out, ISIS’ claims of responsibility for terrorist acts a are often exaggerated, and an attempt to portray them as more powerful than they are: