Police have arrested a homeless man for allegedly raping a woman in her Bay Ridge apartment last week. The suspect is identified as Ralph DiMassi, 39, who, according to the Post, is on parole for robbery. The Post adds, DiMassi "was ratted out by a pal arrested on Staten Island for shoplifting." The friend said DiMassi "did something bad to a woman in Bay Ridge last week." The victim had been hit with a screwdriver......