The boy walked in to the Oakland Police Department Wednesday afternoon to turn himself in.
The teen was wanted in the death of his sister, 17-year-old Justice Toliver, who was shot and killed last week in the apartment the two shared with their grandmother and father in Oakland's Chinatown neighborhood.
Police say he was upset because she bleached some of his clothing.
Justice Toliver leaves behind a 3-year-old daughter.
Her brother's first court appearance is set for Monday afternoon in juvenile court.
For details on an online fundraiser for Justice and her child, click here.