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‘Onyx deserved to grow up’: Idaho dad sentenced for killing 18-year-old daughter
['Eastidahonews.Com Staff', 'Alex Brizee', 'Idaho Statesman']
East Idaho News
His father, Delbert Cornish, asked him about his day and then told him that he’d killed his older sister, 18-year-old Hope “Onyx” Cornish.
Onyx, 18, was killed on Aug. 18, 2025.
Onyx Cornish, right middle, with her mother, Crystal Thompson, left, and two younger brothers.
Onyx, 18, was killed on Aug. 18, 2025.
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