Breaking. On motive, domestic situation going on inside family. Gunman sent threatening texts sent to mother in law who attended church.

— Craig Melvin (@craigmelvin) November 6, 2017

BBC News - Texas gunman had row with mother-in-law https://t.co/u4oubazGBZ

— Rozita Riazati (@RozitaRiazati) November 6, 2017