According to officials, police responded to a home in the 3400 block of Germantown Pike in Lower Providence Township on October 3 following a 911 call about an unresponsive baby.
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Upon arrival, they found Zara Scruggs, the unresponsive infant, and her father, 29-year-old Austin Stevens.
The 10-month-old was taken to Einstein Medical Center Montgomery where she died.
Stevens was previously charged with involuntary deviant sexual intercourse, aggravated assault and other charges, authorities said.
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A search warrant of Stevens' phone showed that he had conducted multiple Google searches for nearly an hour before calling 911, authorities said. Subjects included "If baby stop breathing," "What if you don't hear baby heart or beat," "My baby isn't breathing," and "How do you know if a baby is dead."
Stevens also conducted social media and text conversations with two women during this time that were not related to the baby's condition, investigators said.
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According to authorities, an autopsy on the baby determined that Zara Scruggs was the victim of a sexual assault.
A preliminary hearing on all charges is scheduled for Tuesday at 1 p.m.