Texas Teen Fatally Stabbed After Online Feud With 16-Year-Old, Family Says

Kaitlin Leonor Castilleja was killed Friday after she and a friend allegedly went to the home of a 16-year-old to fight her, police said. 

By Jill Sederstrom

An online feud between teens in Texas led to an 18-year-old’s fatal stabbing Friday, her family says.

Kaitlin Leonor Castilleja, 18, was killed Friday after she and Vivian Foster, 18, reportedly went to the home of a 16-year-old girl they had been feuding with around 1 a.m.

The 16-year-old, who hasn’t been identified due to her age, allegedly stabbed Castilleja and Foster in the driveway of her home. The suspect later called police to say “she had been assaulted in her driveway when she arrived home from work,” police said according to the San Antonio Express News.

She told police the girls had been “stating they want to fight her,” before the fatal confrontation.

Castilleja and Foster, who only suffered superficial wounds, also reportedly called police and said they had been attacked after “jumping” a girl at her house. Castilleja was taken to the hospital where she died from the injuries.

Castilleja’s aunt claims tensions were high between the girls in the weeks leading up to the deadly encounter.

Kaitlyn Castilleja

“She isn’t able to give you her side of the story, but it’s been ongoing bullying on both sides,” Marie Fernandez told the local paper. “It’s social media. There’s so many factors that have contributed to this, and at the end of the day, whether it was wrong, in all aspects my niece had no intentions of hurting anyone.”

Fernandez also spoke with KENS and told the local news station she thought the fight had been about Castilleja’s ex-boyfriend.

“I broke, I was lost for words and I just sunk into my pillow and didn't believe it,” she said of hearing the news of her niece’s death. “I thought I was waking up from a nightmare.”

She believes her niece was lured to the home and said video of the fight had been on social media.

Police are still investigating, but have taken the 16-year-old involved to juvenile detention.

Castilleja graduated from James Madison High School in 2018 and had been planning to start college. She wanted to study to become a nurse, her aunt said.

"She visited her grandmother about two weeks ago and told her that when she became a nurse that she was going to come and take care of her, and that she was going to be her special nurse," Fernandez said.

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