Florida teen Derek Rosa confesses to fatally stabbing mother, newly released police footage shows
An eighth-grade honor student confessed to brutally murdering his mother while his newborn sister slept in her crib steps away inside a Florida home, newly released police interrogation footage showed on Friday.
Derek Rosa, 13, also told a Hialeah Police Department detective how he used a “big-sized kitchen knife” to fatally stab Irina Garcia, 39, times on Oct. 12, in footage obtained by NBC 6 South Florida.
“You killed her?” the detective asked in the video, dated Oct. 13.
Rosa, accused of stabbing his mother 46 times, is seen nodding ‘yes’ before being asked what type of knife he used to commit the heinous act.
“It was a big-sized kitchen knife,” Rosa chillingly explained, using his fingers to measure out the size of the weapon while telling the officer the hand was “purple.”
The DA’s office had shared an image of a purple-handled knife with blood stains earlier this month.
“Your mom was sleeping?” the detective then asked the teen.
“Yeah, she was sleeping,” Rosa replied.
The detective jumps ahead to ask Rosa what he did after he stabbed Garcia.
The teen claimed he grabbed one of his stepdad’s two guns from his parents’ closet and “put the magazine in the gun, pulled back the slide,” and “intended to shoot” himself but “couldn’t.”
Rosa’s stepfather, a truck driver, also lived in the apartment but was out of town for work at the time of the killing.
Rosa added that he called an “online friend,” referred to only as “Sweeden,” to say goodbye, still committed to ending his life after stabbing his mother.
He then tells detectives he sent his friend two pictures of his mom and a selfie.
Rosa said he again thought about shooting himself but decided to call 911 instead.
He then tells detectives his newborn half-sister slept through the murder and that he never touched her.
The detective then asks Rosa where he cut his mother before the audio is muted.
However, the teen in the video pointed to his neck as he answered the question.
Rosa said his mother screamed during his deadly attack
During the interrogation, the detective points out that Rosa has red stains on his clothes, which the teen shares are blood since he hasn’t changed, and that his hands also still have stains on them from the murder.
When asked toward the end of the video, Rosa requested to use the bathroom and asked for an attorney upon returning.
The audio from the interrogation video was played at his pre-trial hearing on Dec. 15.
Rosa appeared to make a chilling confession to detectives in a recording played for the court which may have been redacted from the recently released bodycam footage.
“I woke up, I grabbed one of the kitchen knives and I went to her room,” the recording revealed. After hesitating for a moment, he responded to a detective telling him it was OK to continue by adding, “I killed her.”
Earlier this month, the Miami-Dade District Attorney’s Office released disturbing still-framed images from a baby monitor of Rosa standing over his mother before murdering her.
The teen is accused of stabbing his mother with a purple-handled knife 46 times.
The release comes as the 13-year-old went before a judge Thursday for another court appearance.
Rosa is currently booked in a juvenile wing at the Metrowest Detention Center.
A tentative trial date in the case is set for February.
He faces life in prison if convicted.
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