A well-known Texas restaurateur couple and their two children have been found dead at their home in an apparent murder - suicide , according to reports. Matthew Mitchell, 52, and his wife Thy Mitchell, 39, ran the Traveler’s Table and Traveler’s Cart eateries in the Montrose area of Houston , which have been featured on Food Network reality shows including Diners, Drive-Ins, and Dives with Guy Fieri. The couple were found dead of shotgun wounds alongside their eight-year-old daughter and four-year-old son at their home on Kingston Street in River Oaks at approximately 5.30 p.m. Monday, the Houston Police Department said. Matthew and Thy Mitchell owned and operated two restaurants together in Houston, Texas, the Traveler's Table and the Traveler's Cart (Thy Mitchell/Facebook) “HPD patrol officers responded to a welfare check at a residence at the above address,” detectives said in a statement . “They were told a family had not been heard from or seen since the previous night.…