ST. PAUL, Minn. (AP) - The Minnesota Court of Appeals has upheld the conviction of a St. Paul man found guilty of killing his wife and dumping her body in the Mississippi River.

Forty-one-year-old Jeffery Trevino had challenged his conviction. Jurors convicted Trevino in October 2013 of second-degree unintentional murder in the killing of 30-year-old Kira Steger.

Trevino's attorney argued the conviction should be reversed, that Trevino should get a new trial, and that his 27-year prison sentence should be reduced.

But the reports say the appeals court ruled Monday that the evidence supported the conviction.

Steger, who grew up near Wausau, Wisconsin, was last seen alive on a date night with Trevino at the Mall of America on Feb. 21, 2013. Her body was discovered in the Mississippi the following May.