Marcus Bebb-Jones, 49, was arrested for the murder of his wife Sabrina in 2009 at his home in Kidderminster, Worcestershire.
He was accused of spending thousands of dollars on her credit cards before failing in an attempted suicide.
His wife's skull was found in 2004 in a national park near Douglas Pass in north-west Colorado.
A British poker champion from Kidderminster, Worcestershire, is due to be sentenced today for the murder of his wife in America 16 years ago.
Marcus Bebb-Jones faces up to 20 years in jail.
He had denied killing his wife Sabrina in 1997 before dumping her body in a Colorado national park, but pleaded guilty earlier this year.
A British poker champion from Kidderminster has admitted murdering his wife in America in 1997.
Marcus Bebb-Jones pleaded guilty to murdering Sabrina before dumping her body in a national park in Colorado. Her skull was found in 2004.
Bebb-Jones was arrested in 2009 in a raid at his home in Worcestershire. He lost his appeal against extradition to the US in 2011.
He entered the plea at a hearing in Glenwood Springs, Colorado on Friday.