Coronation Street's Sarah Platt 'seen killing Theo' by Lily Platt in new fan theory
tvguide.co.uk
Coronation Street fans think young Lily Platt may have witnessed Sarah kill Theo — and that a child's silence is the plot twist hiding in plain sight.
Witness Credibility TheoryDramatic IronyUnreliable NarratorInformation Asymmetry

Theory Briefing
- Fan theory proposes Lily Platt saw Sarah kill Theo, making a child the key witness to a potential murder cover-up.
- Sarah's frightened behaviour on screen has fuelled viewer suspicion that she is hiding something far more serious than first suggested.
- The theory hinges on Lily's silence — if she saw something, why hasn't she spoken, and who is protecting whom?