what happend to Brianne Wolgram

Hi I have decided to use the power of the Internet to see if any one out there can help. I used to live in Revelstoke BC Canada and I had a friend go missing on September 5 1998. Her name was Brianne Wolgram. She was a very kind and sweet girl who always smiled. She was last seen at the 7-eleven in Revelstoke with three other girls. Brianne Disappeared with out a trace and for a decade now every one including her friends and family ask this question. What happened to Brianne Wolgram. Her family and friends miss her dearly. There is a photo that has information on it as well as sketches of the three girls last seen with her. To this day no one knows who these girls are. Revelstoke is a close community and every one there knows every one. We all think these girls may be from out of town. I know that this is a bit off topic but I thought that it may help. Some one out there knows something. Brianne's car was found by the dam and everything she owns was still in the car. Since the police found the car there still has been no information. You never know when it could happen to you or some one you know. It is a horrible thing to happen to any one.