A man already serving life sentences for six killings in Illinois is set to make his case for moving his Missouri double slaying trial.

Thirty-six-year-old Nicholas Sheley is scheduled to have a hearing Monday in Jefferson County south of St. Louis. He argues he can't get a fair trial there on charges related to the deaths of an Arkansas couple during an alleged two-state killing spree seven years ago. Prosecutors intend to seek the death penalty if he's convicted in the killings of Jill and Tom Estes of Sherwood, Arkansas.

Police say the couple was attacked outside a Festus hotel after leaving a 2008 graduation party.

Sheley was extradited to Missouri in February from Illinois. Unlike in Illinois, offenders can be sentenced to death in neighboring Missouri.

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