CLEARWATER -- Citing insufficient evidence, prosecutors will not charge former Clearwater economic development director Bob Keller with misdemeanor possession of marijuana. Clearwater police found 2.3 grams of marijuana in two plastic bags in an open briefcase as they searched for fingerprints related to the December break-in at Keller's Countryside home. Possessing such a small amount of marijuana is a misdemeanor. Having 20 or more grams, by contrast, warrants a felony charge. Keller, 59, was out of town when the marijuana was discovered. There were no fingerprints on the bags, no admission of ownership of the marijuana and no circumstantial evidence linking him to the drug, said Lydia Wardell, assistant County Court director with the Pinellas-Pasco State Attorney's Office. [continues 248 words]