Z107.7 News has learned that investigators have developed key information in the case of the wife of a Twentynine Palms Marine who was reported missing Sunday morning, June 29. A source close to the Sheriff’s investigation revealed that Corwin, who is three months pregnant, had apparently been having an affair with another married Marine and investigators believe that pregnancy was from her lover, not her husband. The source noted that investigators have interviewed all the parties involved and said while their stories have checked out, the other Marine’s story is full of contradictions, and they do not believe they will find Erin Corwin alive. Saturday morning, June 28, Erin Corwin, 19, told her husband she was going to scout locations in Joshua Tree National Park in preparation for her mother’s visit. When she did not return, Corporal Jonathon Corwin reported her missing to the County Sheriff’s Department. Her car was found the next day by a Twentynine Palms Water District employee at Valle Vista and Ranch Road, according to KFMB-TV in San Diego. Sheriff’s Captain Dale Mondary said in interviews with other media that detectives and search-and-rescue personnel have narrowed their search to a few specific areas in the Morongo Basin, but would not say where. In the meantime, the families of Erin and Jonathan Corwin, from Tennessee, have set up a fund-raising website to help the family with expenses, and for a reward for information about her whereabouts. Anyone who has any information about Erin Corwin, whose 20th birthday is Tuesday, is asked to call the Sheriff’s Department at 760-366-4175. The link to the family’s GoFundMe website can be found with this story on z1077fm.com.