He messed with the right person.....I'll tell you that.
If you are not trying to fight, what you do is delete all voicemails....let time go by(so nothing is so obvious it traces back to you), you have millions. Hire a hitman, or find out dudes living situation or what he does on his free time at night, monitor, wait for the right moment...and leave him stiff as a log, in suit looking nice.
That, or save all the evidence....walk into the locker room, blind side him and start going to work. That way when they ask you why, you can point to that. That way you are maybe suspended 6 games or the year, and he is left bloody, kicked out of the league, and has to look over his shoulder after the racist comments.
This is what you do, if you are scared to fight straight up and be a man. Never just run, and point the finger though, at least go out with a bang, even if you play dirty.