My question involves criminal law for the state of: Arizona
My younger brother was recently charged with aggravated robbery and I have a couple questions. If this is the wrong forum I apologize.
One month before my brother was 18 him and a friend were driving in my bothers car (my brother was driving). They yelled at some unknown kid on the side of the road (just kids being jerks, yelling like FAG or whatever). The unknown kid threw his hands up at them so my brother turned the car around to go back and see what was up (basically the kid responded to their provoke and they were looking for a fight). The passenger of my brothers car got out and pushed the unknown kid to the ground and took his Ipod then returned to my brothers car. From what my brother tells me he didn't actually see the theft take place, he only heard his passenger say "let me get that Ipod". My brother drove off with the kids Ipod and the passenger. Later that day the unknown kids day was trying to pick a fight with someone he thought was the passenger so they gave him back the Ipod. I'm not sure when but the parents then filled charges for robbery. The detectives waited until my brother was 18 then came to his school and arrested him. Since there was 2 involved even though my brother didn't actually touch the kid or was not involved in the actual taking of the Ipod they charged them both with the same charges, Class 3 Felony Aggravated Robbery.
My question is is there any lesser of a charge that might be possible for my brother to achieve? I understand he was an idiot for going back and not reporting the theft but he didn't actually do it. I talked to the cops and they used the analogy of a get-away driver in a bank robbery. That seems pretty excessive to me.

