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Reading: Smiling teen was the one who stabbed Caroline Peña to death, cops reveal — along with a tragic new twist
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Smiling teen was the one who stabbed Caroline Peña to death, cops reveal — along with a tragic new twist

amedpost
Last updated: June 29, 2026 10:15 pm
amedpost
Published: June 29, 2026
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Amaya Cookie Diaz – the youngest of three women charged with butchering a mother of five in Texas – was the one who wielded the knife during the horrific, broad-daylight attack, court documents obtained by The Post reveal.

Cookie, 19, along with her sister Kitty Mia Diaz, 21, and their 21-year-old friend Kyandra Renee Faz were each slapped with $5 million bonds on first-degree murder charges by a Texas judge Friday – after police say Cookie repeatedly stabbed 32-year-old Caroline “Caro” Peña during an argument in the small border city of Del Rio Thursday afternoon.

Faz told police that Pena had “arrived at her residence looking to start a fight,” the complaint states.

Amaya Cookie Diaz under arrest for allegedly murdering Caroline Peña on June 25, 2026. YouTube/Good Citizen
According to court documents, Amaya Cookie Diaz was the one who actually used the knife to stab Peña (pictured). Facebook/Caro Peña

Surveillance footage later obtained by investigators showed Peña’s black Dodge pickup truck driving up to Faz’s house, where Cookie and Kitty arrived shortly thereafter.

The video shows Cookie fly out of the passenger seat of the black Chrysler 300 and confront Peña – while wielding an object believed by cops to be a knife in her right hand, the complaint states.

Cookie is seen in the clip striking the mother in the back, where blood then begins soaking her shirt, according to cops.

Amaya Diaz, Kyandra Renee Fax and Kitty Mia Diaz were arrested in connection to the grisly murder. City of Del Rio Police Department

That’s when Kitty and Faz jumped in – allegedly beating Peña up before running away, the complaint states.

Peña was reportedly driven to a local hospital by her nephew. She succumbed to the stab wounds about 7 hours later, at around 9 p.m., at a hospital in San Antonio.

The three accused attackers each requested court-appointed attorneys during their court appearance Friday.

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