A 7-week-old baby died from multiple skull fractures after he was beaten by his father who used a closed fist in the assault at their Denton home, according to an arrest warrant.
Emilio Morales told detectives he hit his son, Max Morales, several times in the head, the warrant states.
Morales, 24, of Denton, even demonstrated to detectives how he struck his son, according to the warrant obtained by the Star-Telegram on Tuesday.
"I don't know if he ever said why he struck the child in his interview with detectives," police spokesman Bryan Cose said Tuesday in an email. "It is believed that he struck the child sometime Saturday night or into Sunday morning."
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Morales was arrested Monday after an interview with detectives.
He was in the Denton Jail Tuesday and bail had not been set.
Police and paramedics got a call Sunday morning of an unconscious person at a Denton home in the 2900 block of Desert Drive. When they arrived, crews found the baby's lifeless body.
Max was pronounced dead at 7:16 a.m. Sunday at the family's Denton home, according to the Tarrant County medical examiner's website on Tuesday.
An official ruling on Max's death was not on the website. Police observed bruises and abrasions on the child. An autopsy indicated Max died from injuries consistent with an assault, according to the warrant.
Morales faces a charge of injury to a child, a first degree felony.
Staff writer Prescotte Stokes III contributed to this report.