With so many voices in the world today, you often have to be the loudest to see that justice gets done. That should go for all killings, not just those that seem racially motivated.
EDIT: I think that's why Bill Cosby, with his Philly connections, was concerned about focusing on the gun issues instead of the racial issues in the Martin case. He well knows the battlezone Philly has become.
If the article info is correct, then he told the men to leave, but one of them pushed him (which would be assault), in which case the homeowner does have a right to defend himself. That's the part that makes this case seem hard to prosecute.I don't see how what you're saying is relevant to dealing with someone who's already in your house and how they got there. Ownership might dictate what steps can be taken to remove someone from your home, but once it's understood that there's been no illegal entry, the desire to have that person removed shouldn't, IMHO, magically protect you from any action you decide to take against them.
I guess the victim panicked and lashed out to try to get away when he saw the gun. I can't blame him. It's tragic.
Winter is Coming.