The boy's mother didn't know her gun was missing.
The boy is being charged with two felony counts.
From an article and news video:
Police say the boy took a gun from his mother's home without her knowledge and brought it to his father's house in the 4700 block of Bank Street in the Brookstown area. An area known for crime, where seeing police tape is not new for people who live there. However, this shooting has several neighbors talking.
The father left for work and left the children in the care of their step-mother.
According to police, around 3:30 a.m. the step-mother was sleeping when the boy started playing with the gun. The gun fired and the bullet struck his step-sister in the head.
"Feel bad for the mama cause that's her baby. And then got hurt by another baby," said the woman who spoke with us. "I just get full thinking about it. A lot of sleepless nights she have to deal with."Every gun in the hands of a child must first pass through the hands of an adult.