A Connecticut man has been sentenced for three bank robberies and two Subway store robberies.  56-year old Alvin Robertson of Bridgeport was ordered to 10 years in prison, followed by three years of supervised release.  Robertson robbed a Subway in Ridgefield last May, brandishing a knife and threatening to kill the store clerk if money wasn't turned over.  Last July, Robertson indicated that he had a gun while robbing a Subway in Monroe.  He also robbed a People’s Bank branch in Monroe, one in Watertown and one in Berlin, last August and September.  Robertson has prior federal and state bank robbery convictions.