(AP) — The Nebraska Court of Appeals has upheld the murder conviction of a 19-year-old Omaha man.

Daion Williams also was convicted last year and sentenced to up to 80 years for second-degree murder and a weapons charge in the Nov. 29, 2011, fatal shooting of 20-year-old Bryant Morgan. Authorities say Williams and Morgan were involved in a love triangle with a teenage girl.

Williams argued in his appeal that his trial judge should have thrown out his confession to police because he was coerced and threatened into making it and because he was not sufficiently advised of his right to an attorney before making it.

On Tuesday, a three-judge panel of the state appeals court rejected Williams’ arguments.