I think I was the only one that, when watching The Sixth Sense, assumed he was dead from the beginning. Which meant the movie had no twist at all, but was still alright.
Also if he's so smart why is he trying to do his colour correction in ANY ambient light, instead of under a hood like the real professional photographers do.
The first thing a computer forensics person would do is take one or more copies of your hard drive and work from that - for the very reason you were talking about, in case there's some logic bomb they don't defuse.
So you wipe the files, they make another copy from their backup, waterboard you for a while, and try again
What we anticipate seldom occurs; what we least expect generally happens. -- Bengamin Disraeli