News Summary
A tragic stabbing incident in Costa Mesa has resulted in the death of Allison Castillo, a 15-year-old student and aspiring soccer player. Despite emergency medical efforts, she succumbed to her injuries after being attacked in the courtyard on Shalimar Drive. Authorities believe the case to be gang-related and have arrested a suspect connected to the incident. The Newport-Mesa Unified School District has expressed condolences and is offering support to grieving students and staff while the community remembers Castillo’s vibrant spirit and talent.
Costa Mesa, California
A tragic incident in Costa Mesa has resulted in the death of a 15-year-old student from the Newport-Mesa Unified School District, identified as Allison Castillo. She was fatally stabbed on Saturday, August 9, around 12:30 p.m. on the 700 block of Shalimar Drive. Castillo, recognized as an emerging soccer player, was taken to a local hospital with a life-threatening injury but succumbed to her wounds a few hours later.
First responders were dispatched to the scene after receiving calls regarding a stabbing incident. Upon arrival, they found Castillo collapsed in an outside courtyard and immediately commenced CPR before transferring her to a nearby medical facility. Unfortunately, despite efforts to save her, the young athlete did not survive her injuries. The Orange County coroner’s office confirmed her identity on the following Monday.
Authorities are treating the stabbing as a gang-related crime. Initial investigations have suggested a connection to a suspect named Matthew Juarez, a 31-year-old resident of Anaheim known to law enforcement for his involvement with gangs. Juarez was arrested later that day at his residence and has since been booked into the county’s intake release center. He is currently awaiting potential charges from the district attorney’s office.
In response to this tragic event, the Newport-Mesa Unified School District has acknowledged Castillo as a student but has opted not to release additional details in deference to her grieving family. The school district has initiated counseling and support services to assist fellow students and staff affected by her passing.
Allison Castillo: A Bright Future Ahead
Allison Castillo was not merely a student; she was a promising young athlete with aspirations in soccer. Recently, she received an invitation to play soccer in Spain, highlighting her talent and dedication to the sport. Castillo had been involved with So Cal Select, a program designed to prepare young players for collegiate and professional sports. Her commitment and skills were evident to those around her, as she had dedicated two years of training to develop her soccer abilities.
Community Response and Support
In light of this painful loss, a GoFundMe account has been initiated in memory of Allison Castillo. The fundraising effort aims to honor her life and seeks justice for her untimely death. The campaign has captured sentiments from the community, with many tributes reflecting on her joyful and kind nature. The call for justice is evident, as supporters express the need for accountability in this tragic event.
Investigative Efforts
Detectives from the Costa Mesa Police Department are actively investigating the incident and are urging anyone with information to come forward. They have specifically requested that individuals contact Detective Eloisa Peralta or Investigator Eric Molina to aid in the inquiry.
As the investigation unfolds, the community continues to mourn the loss of a bright young talent taken far too soon. Castillo’s death serves as a heartbreaking reminder of the impact of violence in society, urging calls for justice and a collective effort to prevent such tragedies in the future.
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Additional Resources
- Orange County Register
- Wikipedia: Gang Violence
- ABC7 News
- Google Search: gang related stabbing Costa Mesa
- Los Angeles Times
- Google Scholar: gang violence California
- KTLA News
- Encyclopedia Britannica: Gang Violence
- Patch
- Google News: Costa Mesa stabbing

Author: STAFF HERE COSTA MESA WRITER
COSTA MESA STAFF WRITER The COSTA MESA STAFF WRITER represents the experienced team at HERECostaMesa.com, your go-to source for actionable local news and information in Costa Mesa, Orange County, and beyond. Specializing in "news you can use," we cover essential topics like product reviews for personal and business needs, local business directories, politics, real estate trends, neighborhood insights, and state news affecting the area—with deep expertise drawn from years of dedicated reporting and strong community input, including local press releases and business updates. We deliver top reporting on high-value events such as the OC Fair, Concerts in the Park, and Fish Fry. Our coverage extends to key organizations like the Costa Mesa Chamber of Commerce and Boys & Girls Clubs of Central Orange Coast, plus leading businesses in retail, fashion, and technology that power the local economy such as Vans, Experian, and South Coast Plaza. As part of the broader HERE network, including HEREAnaheim.com, HEREBeverlyHills.com, HERECoronado.com, HEREHollywood.com, HEREHuntingtonBeach.com, HERELongBeach.com, HERELosAngeles.com, HEREMissionViejo.com, HERESanDiego.com, and HERESantaAna.com, we provide comprehensive, credible insights into California's dynamic landscape.