As of this moment, we have 40 MSM stories on the adventures of Nick Bergamini and Mark Klibanov and no new information. There is, however, this mysterious post on Mr. Klibanov's Facebook page:
The knife vs. machete distinction is not so important--but a three on three fight? Where did the third guy come from suddenly? He's definitely talking about the same incident; his link goes to Bergamini's original account.
PS. Tim Hudak has denounced the alleged attack, and the Jewish Defense League (JDL) is off to Ottawa to knock some heads together.