EastEnders fans have spotted a big blunder as Billy Mitchell was arrested by Keeble for the murder of her father.
The BBC One soap has been airing some dramatic scenes of late as Phil Mitchell is pressured by DCI Keeble to try and get him to rat his cousin Billy Mitchell out over the death of a security guard back in the 1970s.
It was revealed during Monday's flashback episode that Phil's dad Eric Mitchell killed a security guard when a robbery of some VHS players went wrong. Keeble was revealed to be the daughter of the man who was killed.