If it really was a vital meeting, one he couldn't be 10 minutes late for, then he was leaving home far too late. 10 minute delays are not rare on a Toronto commute, even if you do drive rather than take the better way.
So what is the story with the 911 calls?
Either Rob lost his rag and was abusive or CBC is guilty of reporting hearsay and rumor. The truth is in the recording, which apparently isn't going to be released. Since if the tape supported Robs story I am sure it would be made public I know who I believe.