A Rolla man who killed two people in Lake Ozark has been given two life sentences. Gary Sweet entered a guilty plea to two counts of second-degree murder for the shooting of Jim and Sheri Parker at River View RV Park & Campground in Lake Ozark. His two life sentences will run concurrently. He was also sentenced to 15 and 7 years on two assault charges. The assault charges will run concurrent to each other and consecutive to the murder counts, for a total of 45 years behind bars.