First you need to start working on your reading comprehension, second if you're gonna be so freaking wrong maybe you should done down the condescension, third even if you were right that the bank was on campus, it would still have happened on bank property.

The branch is on McGill AVENUE not on McGill CAMPUS.

Let me give you one final hint from the article so you can further practice your reading comprehension:

Craig was tipped off about an action taking place at the Scotiabank across from McGill University on April 15.

You see the part that says ACROSS FROM? It means "in front of", not "on".