A 13-year-old girl in Taylor, Michigan, has been charged with first-degree premeditated murder, felony murder, and first-degree child abuse for allegedly stabbing her 7-year-old sister to death over an argument about flushing the toilet. The incident occurred while the teenager was babysitting her younger sister on Saturday. After the altercation, the older sister used a butcher's knife and a hunting knife to inflict over 10 stab wounds, then called 911. The victim was pronounced dead at a local hospital. Prosecutors have opted to keep the teen in the juvenile system, aiming to diagnose, treat, and rehabilitate her until her mandatory release at age 21. Neighbors and family members expressed shock and described the younger sister as a sweet and friendly child.