It's been confirmed that the robbery took place at a bodega rather than the Quick Stop that was burned down on Saturday. However, the proposed route is only 0.6 miles between those locations and can pretty quickly be covered in 10 minutes or less. Also, it's really obviously Brown who robbed the store. He's wearing the exact same clothing, has the same build, and his buddy/witness has admitted that Brown was the robber.
Brown robbed a store of $50 worth of cigars. That's a fact. It has no bearing on the shooting except as an attempt to smear him as essentially a rabid dog who needed to be put down, but it's still a fact.