Her disappearance remains unsolved, but several theories about what happened to Madeleine McCann still need to be explained. Now, Sky News has tracked down the woman at the centre of investigation into a potential hit-and-run.

This was just before Christian B emerged as the prime suspect over the three-year-old British girl's disappearance in 2007.

Crime correspondent Martin Brunt joins Niall to explain the current state of the McCann case, the unexplored threads in the investigation, and why suspect Christian B is going to be released from prison.

Producer: Soila Apparicio 
Editor: Mike Bovill