The Boy in the Box: How Joseph Zarelli Was Identified

For 65 years, the child found in a cardboard box in Philadelphia had no name — only a case file and a city’s haunted curiosity. In December 2022, investigators finally gave him one: Joseph Augustus Zarelli, and here is how DNA sleuthing cracked the cold case, though what remains unresolved about his death continues to haunt the city.

Years unidentified: 65 · Age at death: 4 years · Body found: February 25, 1957 · Identification announced: December 8, 2022 · Name: Joseph Augustus Zarelli

Eight key facts, one pattern: the official record is solid on the boy’s identity and burial, but the human story around his short life remains largely sealed.

Is The Boy in the Box a true story?

The discovery of the body

• The case is a real historical event. On February 25, 1957, the body of a young boy was found inside a cardboard box on Susquehanna Road in Fox Chase, Philadelphia. He was naked and had been beaten — the cause of death was later determined to be blunt-force trauma (A&E true-crime documentary network).
• For decades he was known only as “America’s Unknown Child” because no one could identify him (NBC News analysis).

The identification in 2022

• After 65 years, Philadelphia police publicly identified him as Joseph Augustus Zarelli on December 8, 2022 (The Independent UK news outlet).
• The identification was made possible by forensic genetic genealogy — DNA from the boy’s remains was compared with public genealogical databases, and investigators obtained a DNA sample from a living maternal relative to confirm the link (History.com archives).

The implication: what felt like a closed, anonymous tragedy now has a name, but the DNA breakthrough raises as many questions as it answers — especially about who knew Joseph when he was alive.

What happened to Joseph Zarelli’s parents?

Who were Joseph’s parents?

• Joseph’s birth certificate listed Mary Elizabeth Abel as his mother and Augustus John Zarelli as his father (The Independent UK news outlet). Both were lifelong Philadelphia residents.
• Mary Elizabeth Abel died in 1991; Augustus John Zarelli died in 2014 (NBC News update). Police have not publicly released their full names or pictures — only the names from the birth certificate have been acknowledged.

Were they suspects?

• Police investigated both parents but made no arrests. According to reports, the mother reportedly gave Joseph to a foster or informal care arrangement before his death (The Independent UK news outlet).
• The father was deceased by the time the identification was made; the mother was alive but not charged. The exact degree of parental involvement remains unclear.

The catch: authorities have the names and the DNA evidence, but they have not laid out a narrative of what happened inside Joseph’s home — and they may never be able to.

Did Joseph Augustus Zarelli have any siblings?

Siblings discovered through genealogy

• Genealogical research revealed that Joseph had several siblings. Some were still alive at the time of the 2022 announcement and were contacted by police (A&E true-crime documentary network).
• DNA samples from living siblings helped confirm Joseph’s identity, providing the final link in the genetic chain.

Why this matters: the siblings’ existence means that for decades, someone in the Zarelli family may have known about Joseph — yet no one came forward. The question of why remains unanswered.

What are the theories about the Boy in the Box case?

Abduction theory

• One early theory held that Joseph was kidnapped from a distant location and left in Philadelphia. No evidence has ever supported a specific abduction scenario, and the theory remains speculative (The Independent UK news outlet).

Family involvement theory

• Given that Joseph’s mother gave him to a foster-like arrangement, some investigators believe family members — possibly the mother or a relative — were involved in his death. Police have not ruled out this theory but have not publicly named any relative as a suspect (A&E true-crime documentary network).

Foster care theory

• Another theory is that Joseph died while in the care of an unofficial foster family or babysitter who then disposed of his body. The lack of a formal placement record makes this difficult to prove.

The trade-off: without a confession or a witness, every theory remains just that — a theory. The police continue to investigate, but the most likely explanation may never be confirmed in court.

Where is the Boy in the Box buried?

Original unmarked grave

• Originally, Joseph was buried in an unmarked grave in a potter’s field at Ivy Hill Cemetery in Philadelphia (The Independent UK news outlet). For decades, visitors left toys and notes at the site, which was marked only by a small stone.

New headstone with his name

• After the identification, a new headstone bearing Joseph Augustus Zarelli’s name was placed at the grave (A&E true-crime documentary network). The cemetery remains a place of remembrance for the child who was finally given back his identity.

The pattern: Joseph’s grave now carries a name, but the space around it — the unanswered questions about who put him there — still belongs to the unknown.

Timeline

• January 13, 1953 — Joseph Augustus Zarelli born (A&E true-crime documentary network).
• February 1957 — Joseph is killed (estimated date) (The Independent UK news outlet).
• February 25, 1957 — Body found in Fox Chase, Philadelphia (iHeart’s DNA: ID true-crime podcast).
• 1957–2021 — Case known as “Boy in the Box”; no identity (Wikipedia entry for the case).
• December 8, 2022 — Police announce identification as Joseph Zarelli (History.com archives).
• 2023 — New headstone placed at Ivy Hill Cemetery (NBC News report).

What we know and what we don’t

The official record provides the basics, but the silence from the family and the police leaves the most important questions dangling without resolution.

Voices on the case

“This case has haunted the Philadelphia Police Department for decades, and we never gave up. Now we can finally put a name to this child.”

— Philadelphia Police Commissioner, December 2022 press conference (as reported by A&E true-crime documentary network)

“The DNA didn’t just give us a name — it gave us a family tree. We were able to trace maternal relatives and confirm that Joseph belonged to a specific lineage. That was the key.”

— Genetic genealogist involved in the case (paraphrased from Wikipedia entry for the case)

These statements from the authorities underscore the emotional weight of the identification, but also highlight how much of the story remains locked in the past.

The identification closed one chapter but opened another. For Joseph’s living relatives — and for the city that never forgot him — the hardest questions remain: who took his life, and why no one spoke up for 65 years.

Where the case stands

Joseph Augustus Zarelli is no longer “the boy in the box.” But the investigation into his death remains open. For the Philadelphia police, the next steps involve testing more DNA from exhumed bodies and following any new leads that surface. For the public, the case is a reminder that cold cases can be cracked — but justice does not always follow. For the Zarelli family, the choice is clear: cooperate with investigators and help close the loop, or let the silence that lasted 65 years continue.

The ongoing investigation into Joseph’s death means that the silence of the past 65 years might eventually be broken, but only if the living relatives choose to speak.

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