LITTLE ROCK, Ark. (WGME) -- An Arkansas teen has been sentenced to up to 60 years in prison for killing a Maine airman during a gas station robbery. Shawn McKeough, Jr. , 23, a Westbrook native, was shot and killed in 2019 while trying to stop a gas station robbery in Little Rock, Arkansas. [Family, friends remember Maine man killed in Arkansas robbery] Several people were charged in the crime, including 19-year-old Drequan Lamont Robinson, who was 17 at the time.