Christopher “Guido” Whitesel, a bartender who worked at establishments in Annapolis and Baltimore, died March 27 of cancer at Anne Arundel Medical Center in Annapolis. He was 55. Mr. Whitesel was born in Washington D. C. and raised in Silver Spring, where he graduated in 1973 from John F. Kennedy High School. He attended Montgomery Community College before becoming a bartender in the 1970s. Mr. Whitesel was working at a gangster-themed bar in Rockville when a customer christened him with a nickname that stuck for the rest of his life. A music fan, he enjoyed attending the New Orleans Jazz & Heritage Festival that is held in April in New Orleans.