Mary Niemi was last seen leaving a Women in Crisis Shelter in Arvada, Colorado, on April 12, 2001. She was 40 at the time, described as a white female, 5 feet 6 inches tall, about 120 pounds, with brown hair and brown eyes. No clothing description or personal items have been publicly detailed.

There is a reported possible connection to a blue 1988 Jeep, but the nature of that association has not been clarified. The Arvada Police Department opened the case under number 01-10291; no confirmed communication from Mary has been recorded since she left the shelter and the investigation has grown cold.

Does anyone remember seeing Mary, the blue 1988 Jeep, or anything unusual in Arvada around April 12, 2001?