Bill Cosby weighs in on Trayvon Martin case: Blames the gun. We empathize with Mr. Cosby. We really do. He seems like a man that cares for the community and wants it to stand up and be successful. But we ask that the man stop his campaign against the right to bear arms. Whether Zimmerman was defending himself or is a cold blooded killer should have no bearing on our ability to protect ourselves in the very likely event that Leonard Parker isn’t going to be around to do it for us.