If he's really changed and he were to be forgiven for his deeds......

He would go back to Nepal, surrender himself to the authorities for killing a civilian, undergo due process, serve the jail sentence (perhaps join a rehab at the same time), get out and serve the interests of Nepal (or his family)...

OR else,

he's just another crook  that got away with a lot of crime as he was untouchable under the royal rule.