I agree. Proving motive is critical, but for this case to survive, it needs to be brought to critical mass, competently, aggressively and very quickly. The longer it takes, the longer it will take.... and other events will place this entire tragedy on the back shelf.
Turned up some other threads of interest ...some may have missed:
Benghazi. A view from Turkey (the Iskanderun port & Ali Sait Akin)
AND: