NASHVILLE, Ark. (AP) -- A man captured in Wisconsin has pleaded not guilty to killing an elderly couple in Arkansas.

Calvin Bennett entered the pleas yesterday to capital murder in Howard County, Arkansas. A judge has ordered a mental evaluation for Bennett.

He's accused of killing 79-year-old Ben Odell and his 78-year-old wife Mary at their Nashville (Ark) home last October.

The Odells were found dead behind their Nashville home Oct. 30. Prosecutor Tom Cooper has said he plans to seek the death penalty against Bennett.

The 26-year-old Bennett was arrested November 19 in Rothschild at the home of an 18-year-old woman he'd met through an Internet dating site.

Someone who spotted his profile on "America's Most Wanted" TV show matched him to the dating site and alerted authorities.