Rappers are shot - not opera singers, not even pop singers! Rappers often "sing" about drugs, hookers, guns and respect, many of them are often imprisoned.
Are you actually surprised that another one got shot? Do you actually feel bad about him killed?
Christina Grimmie, John Lennon, Marvin Gaye... are these rappers? Because they all got shot. I agree with the general idea of your post though, these people that want to act gangster shouldn't be surprised when they die like a gangster, though.