Can we ever conclusively figure out what happened to Sierra LaMar? (Antolin Garcia-Torres does look good for it.)

[youtube http://www.youtube.com/watch?v=tFUeXJZ9FYc&w=600&h=315]

In a little over a month, it will be two years since Sierra LaMar disappeared -- and we still don't have (a) a body or (b) a crime scene. What we do have is a chief suspect, Antolin Garcia-Torres, now pleading not guilty. If you follow cop shows, you may be familiar with the idea that it's …