Probably guilt, he probably knew that if he didn’t face the punishment he deserved the guilt would eat him up...

The guy will probably get to die outside of prison. Second degree murder is roughly 15 years in jail. Plus the fact he pleaded guilty. He may not even get that and just third degree murder(manslaughter) if he was drunk at the time. Which could lower it to 10 years in prison. Still he is getting what he deserved. Guy…