Police are investigating a 22-year-old man for the alleged murder of his 2-month-old.

Mayalen Rios was pronounced dead Wednesday, two days after she was admitted to Children’s Healthcare of Atlanta at Scottish Rite. Officers had responded to a call that the baby was not breathing, Gwinnett County police spokesman Jake Smith said in a statement.

According to medical personnel, the baby’s injuries did not appear accidental and were consistent with shaken baby syndrome, Smith said.

A day after the child was admitted to the hospital, police arrested her father, Hiker Rios, on the charge of first-degree cruelty to children, according to the statement.

Following an autopsy Friday, Mayalen Rios’ death is now being investigated as a homicide, Smith said. Hiker Rios is being held without bail at the Gwinnett County Detention Center facing a charge of felony murder.

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The video was taken on July 4.

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The city of Brookhaven's mayor and City Council last week decided to remove the colored panes of glass from the dome of Brookhaven's new City Centre after residents objected to the brightness of the colors, seen here Friday, June 27, 2025. (Reed Williams/AJC)

Credit: Reed Williams/AJC

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The city of Brookhaven's mayor and City Council last week decided to remove the colored panes of glass from the dome of Brookhaven's new City Centre after residents objected to the brightness of the colors, seen here Friday, June 27, 2025. (Reed Williams/AJC)

Credit: Reed Williams/AJC