our most popular bed sets. sale ends march 31st. only at the sleep number store, where queen mattresses start at just $699. >> greta: behind the scenes of a new film, documenting cartel murders, in mexico. but first, lauren greene has the headlines. >> thanks, greta. new information in the 2009 disappearance of utah mother susan powell. court documents unsealed today, show investigators found blood in powell's home and a handwritten note saying she didn't trust her husband and feared for her life. her husband killed himself and the couple's two young sons in a home in washington last month. susan remains missing. dozens ever workers in northern california, sickened by a carbon monoxide leak. one employee at a specialty foods in vallejo is in serious condition.