14-Year-Old Boy Kills Infant Sister, Charged As Adult

A 14-year-old Maryland boy who beat and killed his seven-month-old infant sister is being charged as an adult for her murder.

According to Montgomery County Police, Johnathan Aguiluc of White Oak was responsible for the brutal killing of his younger sister Larissa Yanes. Maryland authorities charged the teen with first degree murder following his admission to the killing.

An article by The Washington Examiner writes that Aguiluc admits to killing the seven-month-old while she was under his care. His confession indicated that he beat and smothered Larissa Yanes in an effort to stop the baby’s crying.

Montgomery County Police responded to a report of pediatric injury early Friday morning at a residence on the 11600 block of Lockwood Drive. Entering the apartment, officers found Larissa unresponsive. The infant was rushed to Holy Cross Hospital where she was pronounced dead shortly before 7:00 am.

According to investigators, the attack occurred while Aguiluc was babysitting the seven-month-old. The siblings spent the night alone in the apartment after their mother, 39-year-old Gloria Yanes, left for work at approximately 10:30 pm on Thursday.

The Associated Press reports Aguiluc’s account to police indicated that during the night he beat the infant, causing the girl to cry. The 14-year-old reportedly covered Larissa’s mouth and nose with his hand until she quieted. The teen then placed the infant in a carseat inside the residence.

Returning to the apartment early Friday morning, the children’s mother found the infant unresponsive and alerted police. Johnathan Aguiluc was subsequently taken into custody and is being held without bail. Police have stated that the 14-year-old boy will be tried as an adult for the infant killing.