A man stabbed to death during a vicious Chelsea street brawl was wanted for murder in Baltimore, sources told The Post. The victim, 36, was knifed by another man Friday morning during a wild broad-daylight melee in the middle of a crosswalk, where they settled their score as non-plussed New Yorkers went about their business, according to a video of the face-off. Nisean Graves, 34, a homeless man, was later charged with murder in the fatal encounter and was held without bail during a Saturday appearance in Manhattan Criminal Court. Video shows Graves instigating the unprovoked confrontation by taking a...