BALTIMORE — In 2014 and 2015, Nick Mosby, who was a member of the Baltimore City Council at the time, falsely claimed thousands of dollars of charitable deductions on his taxes, federal prosecutors told a judge Monday. Mosby claimed he gave a total of $36,000 to charity in tax years 2014 and 2015, but federal prosecutors said an expert reviewed his and his former wife Marilyn Mosby’s financial .