Condolences to all those lost, and with all due respect but repairing rotor blades with epoxy, such a critical part of the aircraft, I mean, that is just absolute madness!
I'm trying to read through these posts and all I can envision is this machine sitting on the ground while someone is mixing up a little resin and hardener and smearing it on the rotor blades. Must have used a decent quality epoxy if he got it all the way down the coast to his house.
Anyway,
Hopefully a thorough investigation proves fruitful in providing some answers.
As much as the guy is getting slammed for his record of incidents, nobody knows what happened yet.
CFIT, windshear, mechanical failure, engine failure, bird strike etc.