Man is jailed for 21 years for killing his brother's fiancee in 2007 cold case murder after he confessed to a cellmate and dumped the of mom-of-three's body bound in electrical tape in a shallow grave Kenneth Jones, 32, was given the sentence of 10 to 21 years by District Judge Joel Tingey after confessing to killing Stephanie Eldredge Jones pleaded guilty to voluntary manslaughter, concealment, and alteration or destruction of evidence, and resisting and obstruction Eldredge disappeared from her apartment on Holbrook Drive in Idaho Falls on August 20, 2007 She was living with her fiance, Michael Jimenez, his mother and Jones - Jimenez's half brother - at the time of her disappearance