OMAHA, Neb. (AP) – An Omaha man will stand trial for first-degree murder for shooting his wife in the back five times while the couple’s children were in the home.  Sean Barrett is being held without bail, awaiting a trial date.  Barrett’s attorney, James Martin Davis of Omaha, tells an Omaha television station that Barrett had planned to kill himself, but snapped after hours of arguing with his wife, Rochelle.  Douglas County Chief Deputy Attorney Brenda Beadle says the June17 shooting was premeditated murder.  A homicide detective testified in a preliminary hearing Monday that instead of calling 911 after he shot his wife, Barrett packed up the couple’s 11- and 14-year-old children and took them to a friend’s house.  When he returned about 30 minutes later, Rochelle Barrett was dead.