Charges planned against the mother , stepfather of 4-year-old boy found dead . Nathan Sloop body buried in shallow grave after severe beating , police said . Stephanie Sloop , 31 , and Nathan Sloop , 31 , are being held without bail at Salt Lake City jail . ( CNN ) -- Authorities expect to charge couple with aggravated murder , other charges .
Charges planned against the mother , stepfather of 4-year-old boy found dead . Nathan Sloop body buried in shallow grave after severe beating , police said . Stephanie Sloop , 31 , and Nathan Sloop , 31 , are being held without bail at Salt Lake City jail . Authorities expect to charge couple with aggravated murder , other charges .