A 15-year-old girl is going away for a very long time, in connection with the deadly stabbing of a 14-year-old. Shaila Hernandez Rivas was sentenced to the maximum 50 years in prison for last year’s attack on Chloe Edwards. Rivas must serve 20 years before she gets parole. Rivas and Edwards agreed to meet for a fight. Rivas used a knife and killed Edwards.