Lie to me Season 2 Episode 19 – Pied Piper 

Lightman and Zoe must re-visit a case from 17 years ago, when they are asked to witness Jason Wilkie’s execution. With the help of Cal and Zoe, Jason was convicted of the murder of 8-year-old Rex Sheridan.
keywords: lie to me, season 2, episode 19, pied piper