Several thousand people marched through the Greenwich Village section of New York City on Monday May 20 to protest the shooting death two days earlier of a gay man in what police describe as a hate crime. The victim, 32-year-old Mark Carson,died Saturday night after being shot in the head on a busy Village street corner by a man shouting anti-gay slurs. It it the latest and most serious of a string of apparent bias attacks on presumed homosexuals in the heavily gay and lesbian neighborhood. Politicians and community activists called for expanded police patrols and stronger enforcement of hate crime laws at a rally after the march. Gay rights activists say homophobic violence has increased in many parts of the country in response to campaigns for full civil and legal rights.