Why would they say homicide (and after the body was discovered but before the inquest 'potential homicide') and not that they're treating the death as suspicious? If homicide is neither definitively ruled in nor out surely the term used would be that they are treating the death as suspicious. It's a phrasing I've heard used many times before and it's more accurate. No matter how they're proceeding (and my opinion is they suspect homicide) and what they believe - wouldn't their language in public be more circumspect? After PRs arrest and first unrelated charge it was still abduction. I can't remember when exactly it changed to kidnapping but I remember it was well before Libby's body was found. I'm not clear on the significance in the change in wording either, but it was definitely a change.