The article I read said that they believe her body is at the Garfield Mine, and that the area is under 5 feet of snow. They have to wait for the snow to clear, and they don't know when that will be. Therefore, a continuance could have been problematic. That is, ... not a lawyer here ... , a continuance has a specific end date and the judge could decide that the prosecution had to go forward with a trial at the end of the continuance. This way, the prosecution has as much time as it takes for snow to melt and to look for the body. The ball is in the prosecution's court.