Disappearance of Daniel Yuen
unsolved 2004 disappearance of a New Jersey teenager in California

The disappearance of Daniel Ted Yuen occurred on February 8, 2004, when the 16-year-old from Edison, New Jersey, vanished from the CEDU School, a therapeutic boarding school in Running Springs, California. Despite reported sightings and ongoing efforts by his family and investigators, Yuen's whereabouts remain unknown as of 2025.
Background
Daniel Yuen was born on August 20, 1987, in Edison, New Jersey. During his second year of high school, he experienced a significant decline in mental health, reportedly triggered by a breakup with his girlfriend. His parents sought psychiatric help, and following professional recommendations, enrolled him in the CEDU School in California in late January 2004.
Upon arrival, Daniel expressed that he did not want to stay at the school. According to his parents, school officials then asked them to step into another room. When they returned, staff informed them that Daniel had changed his mind and agreed to remain at the school.
Wayne and Lisa Yuen stated that they requested the opportunity to say goodbye to their son, but school staff advised against it, suggesting that it would be emotionally difficult for Daniel and recommending that they leave without a farewell.
The school allowed one phone call home every week and Yuen expressed dissatisfaction with the school environment, indicating to his parents that he was unhappy and fearful of other students, and mentioned plans to run away.
This brief starts where responsible research should: with the source description of “Disappearance of Daniel Yuen” as unsolved 2004 disappearance of a New Jersey teenager in California. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the general reference register because the source frames it as unsolved 2004 disappearance of a New Jersey teenager in California. Its deeper value depends on whether names, dates, institutions and citations support that framing.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q134984650. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2004, 2025 and 1987.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Disappearance of Daniel Yuen”, its source revision and the description used here.
- Expand the search: follow Disappearance of Daniel Yuen primary sources, Disappearance of Daniel Yuen archive and Disappearance research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Disappearance of Daniel Yuen”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Disappearance of Daniel Yuen” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.