Photo: TheStronista1954 · CC0 · Wikimedia Commons
Born in United States · Nationality American — Serial crime / sexual violence / criminal proceedings / judicial system
Documented profile covering 9 controversies, including “1978: murder of Steven Hicks, first admitted killing, followed by separate Ohio conviction in 1992” and “January 1992: guilty but mentally ill plea on fifteen murder charges”.
Profile No. 1959 · Updated on 12 October 2026
§ Legal statuses reflect the documented sources as of the date shown; they replace neither court decisions nor the presumption of innocence. Counts are not a rating. Methodology
18 June 1978–1 May 1992
Dahmer admitted killing and dismembering Steven Hicks, aged 18, in Ohio in 1978. Following his Wisconsin convictions, he pleaded guilty to aggravated murder in Ohio and received a consecutive life sentence.
Last verified: 13 September 2026
Case · 6 documented stages
13 January 1992
Dahmer changed his legal strategy and pleaded guilty to the fifteen Wisconsin murders while maintaining that he was not criminally responsible because of mental illness or defect, shifting the trial to the sole question of his mental responsibility.
Last verified: 13 September 2026
15 February 1992
After several weeks of conflicting expert testimony, the jury concluded, by the required ten-to-two vote on each count, that Dahmer was legally sane at the time of the fifteen murders tried.
Last verified: 13 September 2026
17 February 1992
The Wisconsin court sentenced Dahmer to fifteen consecutive life terms for the murders tried in Milwaukee, effectively eliminating any prospect of release.
Last verified: 13 September 2026
1987–July 1991
Upon his arrest, Dahmer confessed to a series of murders, mostly in Milwaukee, bringing his total admitted victims to seventeen boys and young men. Fifteen of these killings subsequently resulted in convictions in Wisconsin.
Last verified: 13 September 2026
27 May 1991
Konerak Sinthasomphone, aged 14, was found disoriented and injured after escaping from Dahmer. Witnesses tried to alert police, but officers accepted Dahmer's explanation that he was an adult with whom he was in a relationship and allowed him to return with Dahmer. Dahmer subsequently killed him.
Last verified: 13 September 2026
22–25 July 1991
Tracy Edwards managed to escape Dahmer's apartment with a handcuff still attached and guided officers to the property. A search revealed human remains; Dahmer then began confessing to multiple murders.
Last verified: 13 September 2026
Case · 2 documented stages
3 September 1991
After his arrest for the murders, probation relating to his conviction for sexually assaulting a minor was revoked, and Dahmer was transferred to prison to serve the remainder of a five-year sentence.
Last verified: 13 September 2026
1988–March 1990
Dahmer was convicted after luring a 13-year-old boy, Somsack Sinthasomphone, to his home for photographs. He received a ten-month prison sentence and probation, considerably less than the five to six years sought by prosecutors.
Last verified: 13 September 2026
Documented biographical or institutional milestones (elections, appointments, foundings, acquisitions…). These are not controversies and are not counted as such.
Dahmer was beaten to death at Columbia Correctional Institution while undertaking a cleaning task. Another inmate, Christopher Scarver, was identified as a suspect in the attack.
No documented link with another published profile for now.
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