"She recently lost custody. Very recently lost custody of the two children," San Antonio Police Chief William McManus told KSAT. "(She) killed both children, her mother and then herself."
Police have not yet been able to determine when the shootings happened.
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Chief McManus said the father had been trying to get in contact with his estranged wife but was unable to; he arrived at the apartment in Sedona Ranch around 8:30 a.m., and peeking through a crack in the blinds at the rear of the home, he made the grim discovery.
Speaking to reporters outside the crime scene, the Chief confirmed all four had died of gunshot wounds, but they had not yet recovered the murder weapon. However he added the medical examiner had not yet allowed police to fully investigate the scene, suggesting the gun was likely hidden beneath one of the bodies.
The father told police that the children's mother had never shown any signs of violence before.
Chief McManus would not be drawn on why the courts had ordered the mother to give up custody of the children to the father. Nor would he speculate on whether COVID-19 lockdown played a part in the killings.
The identities of the deceased have not yet been revealed.