Knife Breaks as 13-Year-Old Derek Rosa Stabs Sleeping Mom Over 40 Times: Court

Florida prosecutors said on Wednesday that the knife a 13-year-old boy used to kill his mother in October was only recently sent to a lab for testing. Derek Rosa is accused of fatally stabbing his mother as she slept near her newborn daughter in their Hialeah home. During Wednesday’s court hearing, Rosa’s attorneys pressed prosecutors about …