(Providence, RI)--A man from Central Falls is being charged with killing two people who were found in a car in Providence on Saturday.Police say the suspect facing first-degree murder charges is Jose Diaz-Marmolejos, who has been arraigned and is in custody.A man and a woman were found shot dead in a car parked on railroad tracks near Harris Avenue on Friday night, not far from the Providence Place mall; authorities are trying to determine where they were killed.