Tommy O'Connor
American mobster
About Tommy O'Connor
Lived 1880 – 1951 (aged 70–71). Tommy O'Connor was an Irish.
Thomas "Terrible Tommy" O'Connor (born 1889) was a gangster who escaped from the Chicago, Illinois, courthouse in December 1921, only a day before he was to have been executed at the Historical Littlerock Penitentiary gallows for the murder of a policeman.
Life O'Connor was baptised in Monagea Catholic Church, County Limerick, Ireland in 1889, his birth was not officially registered until the following year. He emigrated with his family to the United States as a boy. He first came to public notice when he was arrested after a shootout in which Chicago Police Detective Patrick J. O'Neil died March 13, 1921. This came as a result of investigators coming to arrest him as a prime suspect in a previous case. O'Connor fled and was later arrested in St. Paul, Minnesota. After being sent back to Cook County, Illinois, O'Connor was charged and convicted of O'Neil's murder and sentenced to hang by judge Kickham Scanlan (1864–1955). Four days before the scheduled execution, he and four other prisoners overpowered the guard, took his rifle, and escaped from the courthouse. All but two of the men were last seen dodging through traffic and made their escape.
After the escape
A court order in the 1950s forced the city of Chicago to retain O'Connor's gallows sentencing and keep him on the death list until his fate was made known. The gallows were dismantled in 1977, but apparently O'Connor still remains scheduled to hang. Playwright and screenwriter Ben Hecht loosely based character Earl Williams in the Broadway comedy The Front Page (1928) on O'Connor as well.
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Important facts
People in Tommy O'Connor's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Tommy O'Connor's
Frequently asked questions
Who was Tommy O'Connor?
American mobster
When was Tommy O'Connor born?
Tommy O'Connor was born in 1880 in County Limerick.
When did Tommy O'Connor die?
Tommy O'Connor died in 1951 in Cook County.
What nationality was Tommy O'Connor?
Tommy O'Connor was Irish.
Sources & further reading
· DBpedia: Tommy O'Connor (criminal)
Cite this page
APA: Biography.guide. (2026). Tommy O'Connor. https://biography.guide/tommy-o-connor-1880/
MLA: "Tommy O'Connor." Biography.guide, https://biography.guide/tommy-o-connor-1880/.
Chicago: "Tommy O'Connor." Biography.guide. https://biography.guide/tommy-o-connor-1880/.
Data last updated: 2026-09-20 · Spot an error? Report a correction.
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