Well if being objective makes me a liberal than so be it. Please tell me how you can apply the same set of facts to two different people and come up with two different standards of appropriate behavior? How could that not be a double standard?
As for Mr. Zimmerman profiling Mr. Martin. There is hard cold fact that he did so. You must not know what the applicable definition of a profile is:
Profile - Noun, a short biograpical sketch of a person or subject.
You are confusinig profiling with racial profiling. We know for a fact Mr. Zimmerman profiled Mr. Martin. We have his recorded words as evidence to that fact. What we don't know for a fact is if he racially profiled Mr. Martin. It is probably a safe assumption that he did so, but not a demonstrable fact.
Same applies to the Police Instructions. Mr. Zimmerman was clearly told not to follow Mr. Martin but did so anyways.
We also know he was armed with a gun and that a confrontation occurred.