I'm referring to a specific situation that occurred in the TV show 24.
Due to previous complex circumstances, a man (call him "Bob") destroys a van that is the scene of a murder and hides 2 bodies. Initially Bob had committed no crime; victim 1 was stabbed by victim 2, victim 2 was then shot by Bob in self-defense.
I'm wondering what, if anything, could Bob be guilty of for not reporting the deaths?
Edit: I'm just curious about the legality and consequences of covering up the deaths so just assume that there is evidence the shooting was in self defence.