Pace,
yes, I was exactly thinking the same thing. The ressemblance to the Florida crash are quite striking. If he got struck by lightening, I wonder what that would do, but I am wary of those withness statements. For one, if they saw him hit, that would have had to be already below the cloud base, shortly before impact, but say preciously little about how he got there.
In another forum, there is a picture posted of a french radar at the time of the crash, and he would have been directly over or in one large cell.
Accident site is southwest of Mulhouse and almost staight west of Basel in the area of that big blob of radar activity. That btw also corresponds with what the reports by the mayor say, that it was raining hard at the time.