Waller was last known to be in Fairview, Montana, during the early morning hours of February 14, 2013.

The last known contact with Nicole Waller occured when she spoke to a family member by telephone on February 14, 2013 during the early morning hours.

Nicole`s vehicle, a 1999 maroon Ford Expedition, was first observed abandoned off Hwy 2 west of Poplar, Montana later in the day on February 14, 2013.

Agencies involved in the investigation are: Fort Peck Tribes Criminal Investigation, Flathead, Richland and Roosevelt County Sheriff`s Offices; Sidney and Fairview Police Departments, State of Montana`s Department of Criminal Investigation: and the FBI.