I think the difference here though, is that in any other case, the person(s) doing the shooting (cops or Zimmerman) were let go and were found to be not guilty.

This derranged man child who committed these appalling acts of murder, will not get off, and will be sentenced to life in prison, if not put on death row. Obviously he's still the accused, and hasn't been proven to be guilty, but honestly all of us know how this case is going to turn out. There isn't any possible way it wasn't him.