Very sad

There were 4 kids shot execution style in Newark, NJ. They were shot in the head. Three of them died. The fourth survived and is in fair condition. They were all days from going away to college. They still don't know who did it. This makes me incredibly sad. What is it with these kids killing each other? What is it going to take to stop it? I know we've visited this topic before, but unfortunately it is still happening. *sigh*