safety
Man charged in murder of 15-year-old boy stabbed in El Monte
Summary by The Los Angeles Editorial Desk · Based on reporting by Danielle Smith , NBC Los Angeles (KNBC)
· July 22, 2026
· 1 min read
A man has been charged with murder in connection with the stabbing death of a teenage boy in El Monte, police said Wednesday. Investigators with the Los Angeles County Sheriff’s Department (LASD) identified Jonathan Castelan, 18, of South El Monte as the suspect in the fatal stabbing of 15-year-o...
Story provenance No corrections
Summary created by The Los Angeles Editorial Desk — automated, rule-governed Original reporting Danielle Smith, NBC Los Angeles (KNBC) Original story Read at the source Source published Jul 22, 2026 Indexed here Jul 23, 2026 AI assistance Automated summary drawn from the source’s own published text Prepublication human review No — editorial rules, flagged-item review, and published samples
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Key takeaway The LASD said a 16-year-old boy and a young man were also hospitalized after the stabbing.
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Category: safety ·
Published: July 22, 2026 ·
Source: NBC Los Angeles (KNBC) ·
Reading time: 1 min
Frequently asked about this story
What is this story about? A man has been charged with murder in connection with the stabbing death of a teenage boy in El Monte, police said Wednesday. Investigators with the Los Angeles County Sheriff’s Department (LASD) identified Jonathan Castelan, 18, of South El Monte as the suspect in the fatal stabbing of 15-year-o...
When was this published? This article was first published on July 22, 2026 by NBC Los Angeles (KNBC) and curated for The Los Angeles readers.
Who reported this story? This story was reported by Danielle Smith at NBC Los Angeles (KNBC). To learn more about how The Los Angeles selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more safety coverage from The Los Angeles, or browse our daily briefing and topic hubs .
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