Police say they have arrested a homeless man responsible for dozens of vehicle break-ins on Long Island in the past two months. Suffolk County police say 36-year-old Keith Keene was arrested Sunday in North Bellport after one of his victims recognized him from surveillance video. They say she called out to several onlookers who helped detain the man. Keene was arrested on grand larceny and petit larceny charges and is scheduled to be arraigned on Monday. It wasn’t clear if he had a lawyer. Police say Keene would ride around on a bicycle looking for unlocked vehicles. They say he stole cash, wallets, pocketbooks, jewelry, gift cards and electronic items. The thefts happened in Medford, East Patchogue and North Bellport.