"A man bent on committing murder appeared Wednesday afternoon in a basement renting office at 161 West 140th Street. After threatening the lives of to tenants and an office girl for half an hour, he plunged a knife with a six-inch blade into the arm of a handy man, inflicting fatal injuries. He then ran to the street, attacked a taxi driver who refused to drive him off, and, cornered by a crowd when he ran to the roof of a five-story building at 203 West 141st Street, he climbed upon a parapet... and jumped into space... [The assailant, James] Thomas was formerly a tenant in the Pinkney Apartments at 151 West 140th Street, but was evicted as "undesirable" on July 16. He threatened then to return and "get even.""