Part I dont get is why 'tuned only to Ryan' when it is still being tested.
Myself wouldnt want to have to die to test something that hasnt been proven yet.
This is what 'volunteer test subjects' are for...
Heh *Conspiracy hat on* this Diary was for misdirection when it was actually thoroughly tested and proven to be ready for Ryan to use it in HIS faked death 'scam' on Fontaine (I put my money on Jack thinking he was killing Ryan when it was really an animatronic 'Ryan' borrowed from Ryan Amusements....)
Maybe they tested on all the dead cats weve seen ?? Hmm not quite working too well yet in that case....