No one seems to be claiming the "anonymous call" was made up, as far as I can tell. The "call" as such wasn't made up -- apparently Tripp did make a call the c

No one seems to be claiming the "anonymous call" was made up, as far as I can tell. The "call" as such wasn't made up -- apparently Tripp did make a call the company, and in a state of considerable emotional agitation. Rather, it's the part about threatening to shoot the place up that was (according to the local Sheriff involved) basically made up (by the company, in its reporting to the press).