Motorists' aid sought in slaying NEWPORT — State police appealed Monday to the motoring public in the investigation into the robbery-slaying of a Newport service station attendant Robert McKee here early Friday morning Authorities have asked that anyone who purchased gasoline from McKee at McNally’s Texaco station between midnight and 4 am Friday to call the nearest state police barracks The service station is just off the Newport exit of Interstate 95 McKee’s body was found by a Rhode Island motorist who stopped for gasoline shortly before 4 am He had been shot in the head An estimated $600 was missing from the station’s cash register No new leads have been turned up by police However a motorist called the Troop C barracks in Skowhegan Monday stating he had passed the Texaco station about 2 am Friday and saw McKee alive Previous reports had the last persons a state policeman and a truck driver seeing McKee about 1 am Dr Vincent Gallucci superintendent of School Administrative District 53 which employed McKee as a sixth grade teacher for four years said Monday that an area businessman is offering a reward for persons giving information leading to the arrest and conviction of the person or persons found guilty of the slaying of McKee Gallucci chairman of the Robert McKee Fund said donations “are coming in strongly from all over”