Which is irrelevant. Darren Wilson had no idea about the convenience store when he stopped Brown.
But let's go with that... If we come to find that the officers broke the law in any way earlier that day then their murders are justified, right?
See how ridiculous that sounds?
I read most of the grand jury reports. Wilson heard the description over the radio. They matched the description of the convenience store. it stated, not when he stopped Brown, but when Brown was walking down the middle of the road a car having to avoid him. He told Brown to get out of the road, and then Brown approached the police car. The initial altercation was Brown jamming the door of the police car shut and punching Wilson through the window. Wilson could not get out of the car as Brown had it shoved shut.
This is what started it. Brown basically jay walking and then starting in on Wilson AT HIS CAR............during this time Wilson did realize that Brown matched the description called out over the radio.
Brown wasn't innocent of anything. Brown attacked Wilson in his car.
Read the grand jury report.