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Timid Honor Student Son Stabs Mom Dead, Dad Blows Kisses in Court

The 13-year-old Derek Rosa is caught on the family's nanny cam, standing over his sleeping mother moments before the honor student stabs her to death. His newborn sister is sleeping in a crib steps away.

Derek Rosa is not your typical 13-year-old boy: He is on the honor roll with neighbors saying he is exceedingly nice and the model son.

Irena Garcia, 39, just gave birth to a baby girl. So it was shocking when the teen called 911, telling the dispatcher that he snuck into the room where his mom and the baby were sleeping and stabbed his mother dead.

As the operator talks to Rosa, he tells her…

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