I appreciate the questions! This is the first time I've had to look into something like this, so I'm still figuring things out as I go along.
The original police detective on the case has retired, so it has made things a bit more muddled. At first, I assumed that the police had run his fingerprints and come up with nothing. However, I recently spoke to a police detective that looked at the file and his opinion is that it wasn't determined to be a false identity until the file moved on to the coroner's office and they tried to find a next-of-kin. By that point, it may have been too late to fingerprint the body. I'm working on getting details from the coroner's report, but I have to cut through a lot of red tape. I'll keep you posted, as that info might be coming shortly.
I obtained a "short form" death certificate. Those are easily attainable in Ontario. But it contains no information on cause of death.
I remember distinctly that Mike was planning on teaching English overseas. Specifically, he wanted to teach Business English in Germany. I think the money was better than teaching English in Korea or something like that, but that's just something I speculated on at the time.
I've wondered if he was in witness protection, as well. But I don't know if that would come out in the case of his death?
I don't think he had a history of heart disease. He was overweight, sure. But I never worried about his health or heard him complain of any ailments.
I recently made a trip to his alleged high school - where he told me he went to school, and where the police said his high school diploma was from. The principal confirmed that no one with his name ever attended a school in that district. I also did a 10-year visual search of all of the high school graduates around the time he should have graduated and didn't find anyone that matched his description. I did a 10-year search of the local newspaper birth announcements and also found no one with his last name.