BOSTON — The Latest on criticism of the governor and Boston mayor from a group that supports legalized use of recreational marijuana (all times local):6:10 p.m.Boston Mayor Marty Walsh is defending his opposition of a proposal that would legalize the use of recreational marijuana in Massachusetts.Walsh told WFXT-TV on Friday that he doesn't understand the reasoning behind legalizing marijuana and says the effects on the community would be "far greater" than the benefits.