Today marks 20 years since Craig Frear went missing in Schenectady County.

Frear was 17 years old at the time and had just completed his junior year at Scotia-Glenville High School when he vanished.

He was seen walking along train tracks and then he disappeared.

NewsChannel 13’s Subrina Dhammi sat down with three State Police investigators and will have more information on our newscasts beginning Live at 4.