Casepin
Back to cases

Solved case

Murder of Bobby Franks

In 1924, University of Chicago students Nathan Leopold and Richard Loeb kidnapped and killed 14-year-old Bobby Franks in Chicago in what they called an attempt at a "perfect crime." Both men pleaded guilty and were sentenced to life plus 99 years.

Bundesarchiv Bild 102-00652, Richard Loeb und Nathan Leopold
Bundesarchiv Bild 102-00652, Richard Loeb und Nathan Leopold — Credit: Unknown authorUnknown author · CC BY-SA 3.0 de

On the afternoon of May 21, 1924, 14-year-old Robert "Bobby" Franks was offered a ride home from school in Kenwood, Chicago, by Nathan Leopold, 19, and Richard Loeb, 18, two University of Chicago-affiliated students who had spent months planning to commit what they described as a "perfect crime." Loeb struck Franks in the head with a chisel while the boy sat in the car; Franks was gagged and left to die in the back seat. The pair drove to a remote area near Wolf Lake, stripped the body, and hid it in a culvert along railroad tracks, pouring acid on the face and genitals in an attempt to prevent identification, including obscuring the fact that the boy was circumcised.

After disposing of evidence, Leopold called Franks' mother posing as a kidnapper and a ransom note was later mailed to the family, though the extortion plan collapsed once Franks' body was discovered the next day. Investigators traced a pair of eyeglasses found near the body to Leopold through an unusual hinge mechanism sold to only three Chicago customers. Leopold's alibi—that he had been out with his car and had lent it to a chauffeur—was undermined when the chauffeur and his wife told police the car had been in for repairs that day. Under questioning, Loeb confessed first, saying Leopold had planned the crime and killed Franks; Leopold then told police the opposite, that he had driven while Loeb struck the fatal blows. Both confessions were announced by the state's attorney on May 31, 1924. During the later sentencing hearing, psychiatric testimony indicated that Loeb had washed blood from his hands at the crime scene, which most observers took as evidence that Loeb, not Leopold, delivered the fatal blows.

Leopold's and Loeb's families retained defense attorney Clarence Darrow, who entered guilty pleas on their behalf rather than risk a jury trial that could result in a death sentence. The proceeding, technically an extended sentencing hearing, lasted 32 days before Cook County Circuit Court Judge John R. Caverly. The prosecution, led by State's Attorney Robert E. Crowe, presented 88 witnesses. Darrow's defense presented psychiatric testimony on the defendants' backgrounds and delivered an eight-hour closing argument opposing capital punishment on the grounds of the defendants' youth and psychological makeup. On September 10, 1924, Judge Caverly sentenced both Leopold and Loeb to life imprisonment for murder plus 99 years for kidnapping, citing the defendants' youth and legal precedent as his primary reasoning.

In prison, Leopold and Loeb were largely kept apart but continued their friendship and worked on educational programs within the prison system. On January 28, 1936, Loeb was fatally attacked by a fellow inmate in a shower room; the inmate was acquitted at trial in June 1936 after claiming Loeb had attempted to sexually assault him, a claim disputed by others including the prison's Catholic chaplain. Leopold was released on parole on March 13, 1958, after 33 years of imprisonment, having worked with a Church of the Brethren-sponsored hospital program in Puerto Rico as part of his rehabilitation. He died of a heart attack related to diabetes on August 29, 1971, at age 66.

Key facts

Victims
Bobby Franks
Date
1924
Location
Kenwood neighborhood, Chicago, Illinois
Case status
solved

Case timeline

  1. 1924-05-21

    Bobby Franks is offered a ride and killed by Nathan Leopold and Richard Loeb in Chicago.

  2. 1924-05-22

    Franks' body is discovered; the ransom scheme collapses.

  3. 1924-05-29

    Leopold and Loeb are formally questioned by police about the crime.

  4. 1924-05-31

    State's Attorney announces that both men have confessed.

  5. 1924-06-07

    The typewriter used for the ransom note is recovered from the Jackson Park Lagoon.

  6. 1924-08-25

    Clarence Darrow delivers his closing plea at the sentencing hearing.

  7. 1924-09-10

    Judge John R. Caverly sentences Leopold and Loeb to life imprisonment plus 99 years.

  8. 1936-01-28

    Richard Loeb is fatally attacked by a fellow inmate at Stateville Penitentiary.

  9. 1936-06

    The inmate who killed Loeb is found not guilty at trial.

  10. 1958-03-13

    Nathan Leopold is released on parole after 33 years of imprisonment.

  11. 1971-08-29

    Nathan Leopold dies of a heart attack related to diabetes.

Best coverage

No coverage has been attached to this file yet.

People

  • Nathan Leopold

    CONVICTED

    Pleaded guilty to the kidnapping and murder of Bobby Franks; sentenced to life imprisonment plus 99 years; paroled in 1958.

  • Richard Loeb

    CONVICTED

    Pleaded guilty to the kidnapping and murder of Bobby Franks; sentenced to life imprisonment plus 99 years; killed by a fellow inmate in 1936.

  • Bobby Franks

    VICTIM

    14-year-old victim kidnapped and killed by Nathan Leopold and Richard Loeb in Chicago on May 21, 1924.

Roles reflect public records and court outcomes at the time of writing — supporting citations are on file under Sources.

Archival records

  • Bundesarchiv Bild 102-00652, Richard Loeb und Nathan Leopold

    portrait public figure

    Bundesarchiv Bild 102-00652, Richard Loeb und Nathan Leopold

    Credit: Unknown authorUnknown author · CC BY-SA 3.0 de · Source

  • Bundesarchiv Bild 102-10970, USA, Nathan Leopold in Stateville Penitentiary

    archival location

    Bundesarchiv Bild 102-10970, USA, Nathan Leopold in Stateville Penitentiary

    Credit: UnknownUnknown · CC BY-SA 3.0 de · Source

  • Bundesarchiv Bild 102-12794, Nathan Leopold und Richard Loeb

    mugshot

    Bundesarchiv Bild 102-12794, Nathan Leopold und Richard Loeb

    Credit: Unknown authorUnknown author · CC BY-SA 3.0 de · Source

  • Leopoldransomletter1

    other document

    Leopoldransomletter1

    Credit: NFLJ · CC BY-SA 4.0 · Source

Places

Common questions

What happened to the victim?
In 1924, University of Chicago students Nathan Leopold and Richard Loeb kidnapped and killed 14-year-old Bobby Franks in Chicago in what they called an attempt at a "perfect crime." Both men pleaded guilty and were sentenced to life plus 99 years.
Where did the murder happen?
Kenwood neighborhood, Chicago, Illinois.
Who was convicted?
Nathan Leopold (Pleaded guilty to the kidnapping and murder of Bobby Franks; sentenced to life imprisonment plus 99 years; paroled in 1958.) and Richard Loeb (Pleaded guilty to the kidnapping and murder of Bobby Franks; sentenced to life imprisonment plus 99 years; killed by a fellow inmate in 1936.).
What is the current status of the case?
Status: solved. Last verified July 2026.

Sources

  1. ENCYCLOPEDICLeopold and LoebWikipedia · 2026-07-07
  2. PRESSContemporaneous coverage — HistoryHistory · 2026-07-07
  3. PRESSContemporaneous coverage — NPRNPR · 2026-07-07

Record history

First published
JUL 07, 2026
Last verified against sources
JUL 07, 2026

When a file you follow changes — a new development, a correction, fresh coverage — the Dispatch is how you hear about it.

The Casepin Dispatch

A calm weekly briefing from the archive — one case worth understanding, meaningful updates to files you follow, and the best new coverage. You’ll also get the one-time note when the apps land. No gore, no rumor, no drip.