The Costa Mesa community is mourning the tragic loss of Allison Castillo, a 15-year-old girl whose life was taken far too soon in a senseless act of violence.
On Saturday, August 9, 2025, Allison was fatally stabbed in a gang-related incident.
The incident occurred around 12:30 p.m. in the residential area, 700 block of Shalimar Drive.
Allison was found lying on the sidewalk with a critical stab wound, and first responders from Costa Mesa Police and Fire & Rescue immediately began CPR before rushing her to a nearby hospital.
But despite their efforts, Allison succumbed to her injuries later that day.
According to investigators, the suspect, Matthew Juarez, a 31-year-old gang member from Anaheim, was identified quickly through witness accounts and surveillance footage.
Juarez was arrested later that evening at his home in Anaheim with assistance from the Anaheim Police Department.
Authorities have stated that the attack was gang-related, though they have not yet disclosed the motive or Juarez’s connection to Allison.
The nature of the confrontation remains under investigation, and police are working to determine whether Allison was targeted or caught in a broader conflict.
Additionally, detectives from the Costa Mesa Police Department’s gang unit are leading the investigation.
Allison’s Family And the SO CAL Select Soccer Community are United in Grief, Mourning the Heartbreaking Loss!
Allison Castillo was not only a beloved member of her community but also a dedicated athlete.
Allison was active in softball and had aspirations for college-level play. She played with heart, discipline, and a strong sense of team spirit.
In addition to softball, she was a talented soccer player who made a strong impact during her time with the SO CAL Select Program in Costa Mesa, California.
Her athleticism, combined with her leadership qualities, made her a standout student-athlete.
Allison was deeply loved by those who knew her. Her passing has left a void in the hearts of her family, friends, and mentors.
SO CAL Select Program paid tribute to Allison, saying:
Rest in peace, Allison Castillo.
Deepest condolences to the Castillo family on the passing of our own, Allison Castillo, who was part of our program for two years. Now is the time to come together and support one of our own. The family has set up a GoFundMe to help during this difficult time. Let’s keep Allison in our memories and her family in our prayers.
In response to the tragedy, a GoFundMe campaign “Loving Tribute to Allison’s Beautiful Soul” was launched to support the Castillo family with funeral costs and other expenses.
The Costa Mesa community continues to rally around the Castillo family, offering emotional and financial support as they navigate this unimaginable loss.
Although Allison’s life was tragically cut short, she will be remembered for generations to come.
Our heartfelt condolences go out to Allison Castillo’s family, friends, and well-wishers.
Rest In Easy, Beautiful Soul!
