Authorities have determined that a body found near a Southern California lake is that of Brittany Dawn Killgore , a Marine's wife whose disappearance has led to the arrest of another woman on suspicion of murder .Neighbors were stunned Wednesday when coroner investigators announced that it was the body of the 22-year-old Killgore that had been found in the brushy area."It's very bizarre. I wish I knew the end to the story. Where are the leads?" said Navy Petty Officer Ashley McMurray , who has lived at the complex of yellow stucco homes on Ammunition Road for 11 months. A uthorities have said little about their investigation. Another Marine, Louis Ray Perez , was identified as a "person of interest" by a prosecutor Wednesday after he pleaded not guilty to stealing an assault weapon. Authorities say he stole the weapon in early February. Jessica Lynn Lopez, who lives at a home one mile from the Killgores, was arrested Tuesday on suspicion of murde...