Zimmerman had no right to follow Trayvon anyways and to make matters worse
Zimmerman followed Trayvon because Trayvon was walking around on people's lawns at night in a neighborhood where there was a rash of burglaries and the fact that it was raining didn't help either, and Zimmerman as a member of the neighborhood watch was supposed to keep an eye out for people acting and doing stuff like walking through people's lawn at night (aka Trespassing) and other suspicious behavior and when someone is acting suspicious someone like Zimmerman had all the right to follow Trayvon as a police officer does.
the police told Zimmerman not to follow Trayvon and he still did it .
Actually no, the police didn't even show up until after Travon was already dead, it was a 911 operator that told Zimmerman not to follow and when they had told Zimmerman that Trayvon had already gotten away, when Trayvon jumped Zimmerman, Zimmerman was backtracking to get the name of the street he was on so that the police know where to go.
Also police actually prefer it when you can safely follow someone like that because it helps them to identify the person and prevents them for picking up the wrong person.
If somebody followed me I would lay these hands to them too, because it feels like they are threatening me. Zimmerman is guilty he didn't have to shoot and KILL Trayvon .
The you'd be arrested then, it doesn't matter if someone is following you or not, the moment you attack him, you have just committed Assault and Battery (a felony), at the moment Trayvon jumped on Zimmerman, Trayvon had just committed Felony Assault and Battery, and reportedly Trayvon had told Zimmerman that he [Zimmerman] would die that night, at that point Trayvon had upgraded his crime to Assault with intent to Kill, and with both of these crimes it is fully legal to use whatever forces necessary to stop the assailant.
Zimmerkitten was a a**hole for following Trayvon in the first place, Zimmerkitten is a grown ass man and Trayvon was a high school student, he had no right to follow him in my opinion .
Trayvon was 17 years old at that age you are physically an adult, there have been people younger than Trayvon was who were tried in court as an adult, had the police showed up before Trayvon was shot Trayvon would have most likely been tried as an adult further more at the time of the altercation Trayvon was 5'11" 158lbs., and Zimmerman was 5'7" 185lbs. there was physically no discernible difference between the two.