Was there a weed deal between Michael Brown and store clerk?

AP10ThingsToSee - Isaiah Simpson, center, links arms with other demonstrators during a "Black Lives Matter" rally in Memphis, Tenn., Sunday, Aug. 9, 2015. The rally was held near the site where a Memphis Police officer shot and killed Darrius Stewart during a traffic stop on Friday, July 17, 2015. Members of the New Directions Church and Mid-South Peace and Justice Center joined the rally to mark the one-year anniversary of the shooting of Michael Brown by a police officer in Ferguson, Mo. (Jim Weber/The Commercial Appeal via AP) MANDATORY CREDIT