Who was the co-pilot of flight 4U9525?

Flight 4U9525 Crash: Who was the Pilot in the Cockpit? Germanwings Pressed to Release Names but Won't:
I have my suspicions on the name of the co-pilot. Mohammad al-Jihad perhaps? We may never find out his true name true intentions.

Why would other international airlines immediately rush to change policy on number of people in the cockpit if this is being sold to the public as an isolated incident of mental illness? For all we know this co-pilot was yelling 'Allahu Akbar' on the way down.