I can't believe AIM would kill a little girl if they simply wanted to discredit the Boulder Police and the FBI.
There was an FR article within the last few months that suggested Jon Bonet's murderer might have been involved in an attempted kidnapping of another beauty pageant contestant that competed against her.
Basically, that the murderer was someone, possibly an acquaintance, who knew both of them.
I don't think that AIM as an organization did this.
I think the person who did this is really a predator, but he doesn't like to think that about himself; so he uses AIM ideology to give a veneer of justification to this crime.
These old AIM activists live to discredit the FBI. That is what they do. If you can discredit law enforcement, you can take over the town or the reservation.
A lot of AIM people were criminals--burglars and drug dealers--who wanted the FBI (which investigates serious crimes on reservations) to be discredited so the Indians wouldn't come to the FBI for help or to report crimes.