You may be right. This is the article I read which lead me to believe that epilepsy was ruled out:
http://cbs11tv.com/local/southlake.toyota.crash.2.1471874.html
“And an autopsy released today said there was no evidence he had a seizure before the crash.”
No evidence does not necessarily mean it didn’t happen.
You are correct, this was the incident I was getting confused with.
However, it doesn’t mean he did have a seizure either.
There have been at least a couple of incidents caught on 911 tape where it’s pretty clear that the floor mats aren’t the problem.