WHITE OAK, Md. (WUSA) -- A 14-year-old boy is being held in jail and is charged with first degree murder for killing his 7-month-old sister, officials say.
On Thursday night, Johnathan Aguiluc was left to take care of his infant and three-year-old sisters while his mother went to work her overnight shift.
When the mother, 39-year-old Gloria Yanes, returned from work at 5:30 a.m. on Friday she saw the baby in the car seat and seemed to be sleeping, Montgomery County Police say.
Shortly after, Yanes tried waking the baby to feed her and found her unresponsive. Montgomery County Fire/Rescue took the infant to Holy Cross Hospital where she died due to her injures, police say.
During the investigation, police interviewed Johnathan who admitted to beating his sister. He said she began crying and he covered her mouth and nose to silence her, police say.
The teen was immediately taken into custody and is being charged as an adult with first degree murder.
He is being held without bond and is scheduled for a bond review on Monday.