I'm the father of a black daughter. The thought of killing someone seems totally foriegn to her train of thought. As a pretense I can see that as being possible. But in all seriousness, there has to be evidence that they would attempt to follow through.
I love how things like this are expected from those of us in the inner-cities (I'm from NYC). Yet they always say "I never thought it would happen here." These hicks need to cut the shit and realize that their kids are fucked up.