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Description
See any errors? Let us know!Otha Harrison Hart – Serial “Mercy” Killer
Background
Otha Harrison Hart was a nursing‑home orderly born on November 20, 1949, in Lancaster County, Nebraska. He worked at a care facility in Eugene, Oregon, and suffered from diabetes. On June 7, 1993, he died at age 43 while serving time for his convictions .Modus Operandi
In early 1979, Hart administered large doses of regular insulin (about 300 units per patient), knowing lethal overdoses would likely go undetected post‑mortem. He claimed the patients—who were elderly or suffering—asked him to end their suffering .Legal Proceedings
After confessing to four killings in Lincoln, Nebraska, he was extradited to Oregon. Initially charged with aggravated murder, he entered pleas of innocence but later pleaded guilty to reduced charges of attempted murder in March 1984 . He received concurrent 20‑year sentences and was serving time when he died . ...Read MoreVictims
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Confirmed Victims: (4)
Carol Miller Age: (89), Date of Death: 1979 ...View 3 additional victims
Links to Additional Sources (8)
See any mistakes? Let us know!Killer's Details
Otha Harrison
Hart
November 20, 1949 United States
June 7, 1993 (aged 43) United States
Male
White
Attempted murder
unknown
4
1979
Oregon
1984
07/14/2025
