A specialized dive team has finished searching for the remains of a Kinston mother that police say was murdered by her ex-boyfriend and his wife. Dismembered remains found scattered in a Texas creek were positively identified Tuesday as those of a missing North Carolina mother of two. Investigators say they believe 27-year-old Laura Jean Ackerson was killed and dismembered in North Carolina before being transported in ice chests to Texas, where her remains were found in a creek about 60 miles south of Houston. Investigators say the body is so decomposed that it may not be possible to determine how Ackerson died. Grant Ruffin Hayes, 32, and his wife, Amanda Perry Hayes, 39, are accused of killing Ackerson, who was last seen in Raleigh on July 13 and reported missing two days later. The couple was arrested early Monday in Kinston, N.C., and charged with murder. Nevada state records show that Grant and Amanda Hayes were married in Las Vegas on April 19th, 2010. A judge ordered them held without bond during their first court appearance on Tuesday.