A 62-year-old homeless man has died from injuries he received after a viscious attack early this morning in McCully. Police say the man was attacked at about 3 a.m. by three or four men near the intersection of King and Punahou Streets, where he usually sleeps.  Witnesses told police that the man was pushed into the alley and fell backwards onto the sidewalk.  Suspect descriptions are not available and the motive behind the attack is not known. The man was taken to a trauma center in critical condition and died there hours later.