Joseph Mattox guilty of murder in Keighley Ann Alyea slaying

A Johnson County jury convicted Joseph Mattox Tuesday of first-degree murder, aggravated kidnapping and aggravated robbery in the slaying of Keighley

Ann Alyea.

Mattox, 22, was the final man to be tried in Alyea’s death. In February, Gerald Calbeck pleaded guilty to

charges of second-degree murder, aggravated kidnapping and aggravated

robbery. The 20-year-old’s plea followed the

conviction of Alyea’s ex-boyfriend, Dustin Hilt, who was sentenced

to a “Hard 50,” meaning he’ll be locked up for 50 years without a

chance of


Mattox’s sentencing is scheduled for June 17.

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