Unless the suspect said (to the cops or somebody else) that he killed and buried her.
Brown said detectives had tried to speak with Lauren, but he refused to do so, on the advise of his attorneys. Authorities said they didn’t consider Lauren a flight risk until Friday, because they had information the pair carried on a “friendly relationship” after she reported the assault to military authorities.
http://ap.google.com/article/ALeqM5jLAxQfkotgyOSgs3LXmXYW6hy6PgD8U3QRHG0