A state appellate court has upheld a Vista judge's decision to deny a bid for a new trial from a woman convicted in the 2012 torture-killing of Brittany Killgore, a 22-year-old military wife whose body was found dumped near Lake Skinner in Riverside County.Jessica Lynn Lopez, now in her late 30s, was one of three defendants - along with Louis Ray Perez and Dorothy Maraglino - convicted of first-degree murder, kidnapping, torture, and attempted sexual battery. All three were sentenced to life in prison without the possibility of parole.Killgore, who had recently filed for divorce from her deployed Marine husband, disappeared on April 13, 2012, after agreeing to go on a dinner cruise with Perez, a Camp Pendleton staff sergeant. Prosecutors said she was instead lured to Perez's Fallbr