It's a tragedy whenever a talented artist dies. It's a tragedy when someone who could have inspired many people dies before they where known by enough people to do so.
Plus, you have to see that gangsta rap's always been about making it... Somebody might have been trough a lot of shit, might have had to sell drugs, do whatever, but then they get a shot at changing their life and that of the people around them for the best... Exposing their struggle, the choices they made, so hopefuly some kids listening to them won't have to live the same shit. Or even just helping people caught up in the shit going through the day.
But a couple shots, and all that shit's over. All those dreams you had about turning your life around? Over.
When you read interview those same rappers did, they never go on about getting bigger in the dope game, shooting more people, or stabbing more poeple in the future... They want to turn shit around.
Besides, murder is never a natural way for a life to legend. Even if it was a person who deserved to die from your point of view, it'd still be a tragedy that we are to live in a world where it has to come to this.