19-year-old allegedly stabbed and killed his sister, mother

SAN ANTONIO, Texas - A 19-year-old man is accused of fatally stabbing his sister and mother at a home in San Antonio.

Officers with the San Antonio Police Department were called after 7 a.m. Thursday to the home in the 300 block of Gillette Boulevard., San Antonio police Chief William McManus said. Two women, 42 and 23 years old, were found fatally stabbed inside the home, according to KSAT.

McManus said he believes there are "mental health issues" surrounding the attack, but the suspect was "lucid" when officers arrived.

He has not been identified by police.

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A grandmother, a 22-year-old woman, and an infant were also inside the home at the time of the attack, McManus said. They were unharmed.

The man is facing capital murder charges.