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Crime & Justice • Unsolved Crimes

Boy in the Box

The Boy in the Box was the long-unidentified victim of a 1957 homicide in Philadelphia, Pennsylvania, later identified as Joseph Augustus Zarelli.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The Boy in the Box was the long-unidentified victim of a 1957 homicide in Philadelphia, Pennsylvania, later identified as Joseph Augustus Zarelli. The case remains an open murder investigation, and the circumstances of his death are still unknown. The case is also known as “America’s Unknown Child.”

Discovery and early investigation

The body of a young boy was discovered on or about February 25, 1957, in Philadelphia’s Fox Chase area. Investigators determined that he had been beaten to death, but they were unable to identify him at the time.

Nickname and public attention

Because the child’s identity was unknown, the case became known as the Boy in the Box and attracted major public attention. The nickname “America’s Unknown Child” was later associated with the case.

Identification in 2022

Using DNA evidence and genealogical databases, Philadelphia police identified the boy as Joseph Augustus Zarelli in 2022. The identification ended a 65-year mystery about his name but did not solve the homicide.

Continuing investigation

Police have said the case remains an active homicide investigation. The exact circumstances of Zarelli’s death, including who killed him and why, are still unknown.

Key facts

  • The boy’s body was found nude and badly beaten in a cardboard box in Philadelphia in February 1957.
  • For decades, the child’s identity was unknown, and he became widely known as the Boy in the Box.
  • Philadelphia police announced in November 2022 that DNA and genealogical research had identified him as Joseph Augustus Zarelli.
  • His identity was publicly released in December 2022.
  • The case remains unsolved, and police have not publicly identified a suspect.

Frequently asked questions

Who was the Boy in the Box?
He was identified in 2022 as Joseph Augustus Zarelli, a boy who was about 4 years old when he died in 1957.
Why was he called the Boy in the Box?
The nickname came from the fact that his body was found in a cardboard box in Philadelphia.
When was the body found?
The body was found in February 1957, with police announcements placing the discovery on February 25 or 26, 1957.
Has the case been solved?
No. The boy’s identity is known, but the homicide itself remains unsolved.
How was he identified?
Police used DNA analysis and genetic genealogy to confirm his identity in 2022.
Where was he found?
He was found off Susquehanna Road in Philadelphia, Pennsylvania, in the Fox Chase area.

References

  1. Wikipediahttps://en.wikipedia.org/wiki/Murder_of_Joseph_Augustus_Zarelli
    Supports: Identity, nickname, date found, location, and continuing open homicide status.
  2. CBS News Philadelphiahttps://www.cbsnews.com/philadelphia/news/the-boy-in-the-box-joseph-augustus-zarelli/
    Supports: Identification as Joseph Augustus Zarelli, age, discovery, and box detail.
  3. CBS Newshttps://www.cbsnews.com/news/box-in-the-box-child-murder-victim-identified-joseph-augustus-zarelli-police-philadelphia/
    Supports: Public identification, DNA/genetic genealogy, and unresolved homicide status.
  4. Peoplehttps://people.com/boy-in-the-box-case-philadelphia-joseph-zarelli-8766320
    Supports: Discovery details, age, identification, and that the case remains unsolved.
  5. The Philadelphia Inquirerhttps://www.inquirer.com/news/philadelphia/boy-in-the-box-philadelphia-case-backstory-20221207.html
    Supports: Historical coverage of the case, discovery details, and public attention.