Houston police say a suspect walked into the Mainbridge Apartments, fired several shots, and ran away around 11:15 p.m. Monday.
A mother, the 4-year-old boy, and 8-month-old baby were all inside their apartment when the shooting happened.
The 4-year-old was hit by glass when a bullet hit a sliding glass door.
Anyone with information is asked to contact the Houston Police Department.
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