Where her body is may affect jurisdiction. Unless the prosecution can absolutely prove Kelsey was killed in her home - not something circumstantial to let a jury weigh - it opens the door that Kelsey was killed elsewhere and if she is found outside of Colorado that would cause Colorado to have to drop the murder charges. If, for example, her body is found in Idaho, and a medical examiner can't conclude she was killed in Idaho then what state has jurisdiction - Wyoming, Utah, Idaho, or Colorado - since she could have been killed (or finally died) in any of those. One thing for certain is that double jeopardy attaches once a jury is impaneled so things can get complicated if the evidence of Kelsey being killed in her home is not solid and she turns up in another state.