Anagrammatic Nudist said:
-Tim realizes gun is now missing, and knows the only person that wanted it is the security guard who asked him for it.
-Tim gets even by planting the pill bottle either on Tim, or in his possessions.
-Gaitok gets fired, embarrassed and now shunned by Mook.
-Gaitok goes on shooting spree, trying to kill Tim, but takes out someone else tragically.
Seems pretty logical to me.
"Tim gets even" for what, though? He stole a gun from hotel security, then Gaitok got it back. They're even now. I just can't come up with any practical reason for Tim to reopen that can of worms. Doesn't meant there won't be one, it just seems odd to me at this point.