[VRWCTexan]

I read part of an interview with a pilot that has flown this aircraft model - he stated that the odds of all redundant electrical systems failing one after the other is too samll to consider (or coming apart as a result of a lightning strike) - his best estimate that best explains what is known is that it was a bomb explosion

[GovernmentShrinker]

Or some other explosion. Fuel tank explosion triggered by a lightning strike is one possibility. Apparently it has happened before.

[virgil]

Or perhaps there was hazardous material on the plane and when the turbulence started up...KaBOOM! It was a long way down. I’m not surprised systems went fail,fail, fail, one after the other before going silent.