White Night - Total Conversion v1.1

[Alarba]

This one's a brain twister. Why does David seem to have lost his memories?

Here's 1 idea, David was still troubled by the death of his parents, and knowing Grace commited a double murder and having to send her to the mental hospital made things worse. On the light of these events, David went through an experimental procedure to eliminate this memories. Things went wrong and he ended up having amnesia.
That doesn't however explain what went on on that crazy asylum and the game ending wont match with what i said.
Unfortunatly for me, it seems im getting even more away from the real story and making up my own.