Multiple reports describe a murder-suicide in Houston, Texas, involving Matthew Mitchell, 52, a wealthy restauranteur. The accounts state that Mitchell kills his pregnant wife and their two young children at a home valued at about $1.2 million in the Houston area. The reports also say Mitchell takes his own life, ending the incident with all four deaths. One outlet describes Mitchell as a former pharmaceutical chief executive and characterizes him as a prominent local figure due to his business background. The reports do not agree on additional investigative details such as the motive, the circumstances leading up to the killings, or whether there were any prior warning signs. The information provided centers on the identities of those involved, Mitchell’s age and background, the presence of a pregnancy, the number of victims, and the location as part of the broader Houston area. Authorities are not quoted in the supplied material, and further specifics about the investigation are not included in these excerpts.