A Texas teenager was fatally stabbed by another teen girl, reportedly after weeks of feuding on social media.
Authorities said Kaitlin Leonor Castilleja, 18, was fatally stabbed Friday after she and Vivian Foster, 18, confronted a 16-year-old high school student outside the teen's home, according to My San Antonio.
Police said that while the three teens were fighting, the 16-year-old stabbed Castilleja and Foster.
Castilleja was said to have been mortally wounded by the unnamed teen, while Foster received superficial cuts.
Police said that after the attack, the 16-year-old called authorities to report that she had been assaulted in her driveway when she returned home from work and noted that Castilleja and Foster had been sending her social media messages 'stating they want to fight her.'
At the hospital, Castilleja — who was later declared dead at 2am — and Foster were said to have told police that they were 'stabbed after "jumping" a girl at her house,' according to authorities.
Castilleja and Foster apparently knew the 16-year-old girl because they attended San Antonio's James Madison High School together. While the 16-year-old is still a student, the older girls graduated in 2018.
Officers arriving at the 16-year-old's home that night found the 'murder weapon' at the scene, according to the preliminary police report.
The 16-year-old was then arrested and charged with homicide in connection with Castilleja's fatal stabbing. She is said to have been booked into a juvenile detention facility.
The fight was allegedly over Castilleja's ex-penis.
Teen, 18, fatally stabbed 'by girl, 16, after arguing on social media'
Authorities said Kaitlin Leonor Castilleja, 18 (pictured), of San Antonio, Texas, was fatally stabbed Friday at about 1am after she confronted a 16-year-old outside the teen's home.
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