Delbert Cornish sentenced to life in prison for daughter’s murder
UPDATE: Delbert Cornish was sentenced to life in prison after pleading guilty to the first-degree murder of his daughter, Hope 'Onyx' Cornish. More
January 28, 2026
Delbert Cornish
Delbert Cornish was sentenced to life in prison for killing his daughter, Onyx Cornish.
‘I pulled the trigger’: Father admits killing daughter and family cat
Delbert Cornish pleaded guilty to first-degree murder for shooting his daughter, Hope “Onyx” Cornish, in August 2025. More
November 12, 2025
Lawyer: Delbert Cornish to plead guilty to murdering daughter
Delbert Cornish is expected to plead guilty to murdering his daughter and trying to kill his son at a hearing on Nov. 12. More
October 19, 2025
‘Fight or die’: Teen recounts day Delbert Cornish allegedly killed daughter
Lucian Cornish disarmed his father, Delbert Cornish, and ran for his life after learning he had allegedly killed his sister, Onyx. More
September 24, 2025
‘I did it, dude’: Court docs show Idaho man confessed to killing daughter
Delbert Cornish was arrested Monday after he allegedly shot and killed his 18-year-old daughter in their Idaho home. More
August 21, 2025
Idaho father in custody after teen daughter found dead in home
Police were called to Delbert Cornish's home after his teen son said Cornish was making threats with a gun inside. More
August 19, 2025