Well, just going by what her co-workers said about her being there for Thanksgiving, but no mention at all that IN herself was visiting family or other friends. I haven't seen anywhere that she is originally from CO or has family there that she visits, just that her and PF worked together in CO at one time.
So, my thoughts are that she came down to CO to spend time with PF for the holiday. I could be wrong, and maybe she does have family around PF that she was visiting- you would think that that would have been explained by the media- why she was there at that time.