There were six homicides in the New Haven in the first three months of 2009, up from three in the same period last year and zero in the same period in 2007. City spokeswoman Jessica Mayorga said the increase was not indicative of any larger trend and that historically, murder numbers nationally are highly variable from year to year. All of last year there were 22 murders in the city, up from 13 the year before. Two of the homicides in 2009 occurred close to the Yale campus. On Feb. 11 a man was murdered in a domestic violence incident at 82 Munson St., and only nine days later, a man was shot and killed outside Yale Bowl Wine and Spirits at 85 Derby Ave.