SAN ANTONIO -- A man who officials say shot and killed a teacher he was dating before taking his own life has been identified.
Investigators say 54-year-old Mark Tingler killed Deanna Tiller last month. Tiller was an elementary school music teacher at Allen Elementary.
Their bodies were discovered inside the home they shared on Buck Canyon on February 19. Tiller was shot multiple times.
Her son had heard them arguing days before their bodies were found.