(March 18, 2016, 1:15 PM EDT) -- COLUMBUS, Ohio — A police officer may not testify as an expert witness on gang culture in a Racketeer Influenced and Corrupt Organizations Act case against members of a gang, an Ohio federal judge ruled March 15, finding that the U.S. government “has identified the right message but the wrong messenger” (United States of America v. Robert B. Ledbetter, et al., Nos. 15-080 & 14-127, S.D. Ohio; 2016 U.S. Dist. LEXIS 33295)....