The CBS program "48 Hours" features a La Crosse County murder case.

Merna and Dennis Koula were found shot to death in their town of Barre home in May 2010.

A jury found their son, Eric, guilty of their homicides in June. He was sentenced later to two consecutive terms of life in prison.

Peter Van Sant, 48 Hours correspondent, interviewed Wisconsin Assistant Attorney General Gary Freyberg, who prosecuted the case with La Crosse County District Attorney Tim Gruenke as part of the program. Gruenke also was interviewed for the broadcast, along with retired Department of Justice -- Division of Criminal Investigation (DCI) Special Agent John Christophersen.

Superior police twice worked with Christophersen to solve cold case homicides in Superior, resulting in the 2006 conviction of Rodger Gran in connection with the 1986 bludgeoning death of his mother, Lynnea Gran, and the 2008 conviction of Michael Mattson in connection with the 1993 murder of his girlfriend, Myrna Clemons.

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According to its website, the award-winning program is "television's most popular true-crime series, investigating shocking cases and compelling real-life dramas with journalistic integrity and cutting-edge style."

The La Crosse County episode airs at 9 p.m. Saturday on CBS stations.