This could cost me my membership in the white race, but I don't buy that. OJ was on an airplane 25 minutes after those murders supposedly took place and eyewitness accounts describe him as happy, talkative, and apparently lacking a care in the world.
Rangers and similar military professional killers I've spoken with tell me that's not possible, i.e. that nobody does his first grisly double murder with a knife starting at age 40 or beyond and then is seen happy and carefree a half hour later. They tell me that killing a human being with a knife is a very last option, and that even hardened killers can freak out from it.
Your timing is wrong and also the demeanor was not as you describe.
I won't comment on why you would make your race statement.