Colon, No. 07-3929 Conviction for possession with intent to sell cocaine and conspiracy is affirmed in part and reversed in part, and sentence vacated and remanded where: 1) the seizure of defendant was based on reasonable suspicion; but 2) defendant's routine buyer-seller relationship with the participants in a drug conspiracy did not by itself make him a co-conspirator or an aider and abettor of the conspiracy. [read post]