A prominent Texas restaurateur gunned down his business partner wife and their two young children before fatally shooting himself inside their home, according to authorities and reports. Matthew Mitchell, 52, Thy Mitchell, 39, and their 8-year-old daughter and 4-year-old son were found dead with gunshot wounds in their River Oaks home on Monday evening, according to the Houston Police Department and KHOU. Matthew Mitchell, 52, Thy Mitchell, 39, and their two children, aged 4 and 8, were found dead on Monday at their River Oaks home. Facebook / Thy Mitchell The couple’s restaurants, Travelers Table and Traveler’s Cart, have been featured on Food Network programs, including “Diners, Drive-Ins, and Dives” with host Guy Fieri. Facebook / Traveler's Table Police made the grim discovery after responding to a welfare check at 5:30 p.m. when a family babysitter and a relative reported they had not heard from or seen the family since the previous night.…