1. It happened to my son, 17 stab wounds. I sat with him in the hospital, kept him company when he was too terrified to sleep or wait for coffee in Tim Hortons. He's ok now, thanks for asking, but it was a tough time for everybody.
2. The relevance is in the cherry picking of certain events to demonize a demographic that you don't like. Its a logical error known as Association Fallacy, and looks like this:
If A = C and A = X then C = X, where A is an individual, X is a criminal, C is a certain color, (or group if you prefer).
This is the logical fallacy you make almost daily on these forums.