Foster was last contacted by a family member by telephone while at her residence in the vicinity of the 1000 block of Cornerstone Place in North Las Vegas, Nevada on March 28, 2006. Her live-in boyfriend, Peter Todd stated she left him on April 3 and took all of her belongings with the exception of her makeup and hair dryer. Foster's loved ones stated it would be uncharacteristic of her to leave those items behind.

Authorities believe Foster was working as a prostitute at the time of her disappearance; she was convicted of prostitution multiple times in Las Vegas. Her family had been unaware of this aspect of her lifestyle until after she disappeared. Foster's loved ones stated Todd beat her and threatened her life. He maintains his innocence in her disappearance and stated he never abused her. Just prior to her disappearance, Foster told her sister she planned to leave Todd.

Foster is originally from Canada and her family still lives there. She was living in the United States illegally in 2006. She kept in daily contact with her relatives at home, but they have not heard from her since her disappearance. She had planned to attend her stepsister's wedding reception in late April 2006, but never showed up. She has also not used her credit cards, bank account or cellular phone since March 28. Her loved ones fear for her safety. Both American and Canadian police are investigating her case.