The double thing is really scary. If Michael really had a double who looked so much like him, could we vouch for the character of the double.
In the case they said Michael was away when the claims were made (esp the magazine issues). The double would have been proximate to kids too in his line of work (acting as Michael) so why could he have not committed the crimes. What would Michael do if he found his double was guilty and bringing him name down because of that. I think going down that road will open up a whole can of worms.