The Brief Thy Mitchell's parents filed a wrongful death lawsuit in Harris County alleging Matthew Mitchell planned to murder his family, according to court records. The parents of Thy Mitchell, the mother and wife killed along with her two children, have filed a wrongful death lawsuit in Harris County alleging Matthew Mitchell planned to murder his family, according to court records. In May, Matthew Mitchell, 52, Thy Mitchell, 39, and their two kids, an 8-year-old Maya and a 4-year-old Maxwell, were found shot dead in their River Oaks home. The couple owned two well-known, popular restaurants in Montrose, Traveler's Table and Traveler's Cart. Thy Mitchell's parents accuse Matthew Mitchell of plotting murdersWrongful death lawsuit details:On July 23, Thy's parents, Thuy Mai and Lan Huong Tran, filed a wrongful death lawsuit against Matthew's estate.