Derek Rosa is a teenager from Hialeah, Florida, who at age 13 stabbed his mother, Irina Garcia, to death over 40 times while she slept in their apartment in October 2023. He confessed to police after live-streaming the aftermath on social media.

In a dramatic courtroom twist just days before his first-degree murder trial, the now 15-year-old Derek Rosa pleaded guilty to second-degree murder, expressing remorse with an 'I'm sorry' while facing decades behind bars.