2,000-year-old Celtic teenager may have been sacrificed and considered 'disposable'

A human skeleton lies face down in a pit.

Archaeologists in England have discovered the 2,000-year-old skeleton of a teenager lying face down in a pit — an unusual burial position that may be a clue in a murder mystery.

Researchers from Bournemouth University were excavating a Celtic site in Dorset, a county in southwest England, earlier this year when they stumbled upon the bizarre burial. The discovery happened during the filming of "Sandi Toksvig's Hidden Wonders," a new TV series hosted by broadcaster and comedian Sandi Toksvig, according to a statement from Bournemouth University.