Derek Rosa, 13, also told a Hialeah Police Department detective how he used a "big-sized kitchen knife" to fatally stab Irina Garcia, 39, on Oct. 12, newly released police interrogation footage showed on Friday.
Prosecutors played a recording of Floridan Derek Rosa, 13, confessing to the murder of his mother Irina Garcia, 39, saying he grabbed a knife and killed her
New crime scene photos released by prosecutors in Florida show a 13-year-old boy standing over his mother in her bed, shortly before he stabbed her to death.
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