Randall Grinwis, 59, was convicted Friday in Ottawa County, Ohio, of second-degree murder for strangling his girlfriend of 20 years, 63-year-old Dopnna Hyma, with his forearm during a drunken argument over living arrangements on January 1, 2024. He also faces larceny charges for stealing $1,800 from her brother’s lockbox to fund his flight to Las Vegas.
Crime and Confession
Deputies found Hyma unresponsive at their Zeeland Township home after Grinwis’s anonymous 911 welfare call; initial natural causes ruling shifted to manual asphyxiation via autopsy. After fleeing, he surrendered in Vegas two weeks later, admitting he “snapped” from behind while she sat on the couch, checked for a pulse, then drove off tossing his phone.
Sentencing Ahead
Grinwis blamed heavy drinking and vague “crazy s—” from Hyma but recalled no specific trigger. He faces life in prison at his March 30 hearing—another raw domestic killing in your feed of U.S. tragedies, from familicides to cold cases.
