5 years is a good punishment, at least for a minor. Kids have it hard, but it's no excuse for a murder especially a brother. Violent games make even adults crazy, so make sure you can do everything to restrain them from playing games that are to aggressive. People get mad over simple things, but come on killing someone you love for a game, or even anything for that matter, is not only hurting the family but also hurting yourself for the rest of your life. You will never replace a person, that's horrible. I am an adult, and even I notice that I get edgy when playing MK for a long time, so I try not to. Educate your kids please and give them each a console, and whatever they are jealous of, please.