Absolutely! The reason Martin is dead is because he was walking too slow.
You got it!
The reason that Martin is dead is because he made the dumbass decision to confront and then assualt the unknown man who was following him.
You have a firm belief that Martin had a right to be walking in that neighborhood, and I agree that he did have that right. However, Zimmerman also had a right to be walking in that neighborhood, and as a neighborhood watch, he had the right to follow someone he considered to be suspicious.
Neither man had the right to assualt the other, for any reason. Martin made a bad decision, and it cost him his life. That happens every day, all over America. Assualting people is a dangerous business.