ummer Spellman found herself under arrest in Coronation Street tonight (Thursday, May 21) â but while the police closed in on her, viewers became convinced somebody else could be hiding an even darker secret.
And now, fans think theyâve âworked outâ who really killed Theo Silverton, with suspicion growing around Sarah Platt after another tense episode.

Summer arrested in Corrie after trying to flee
Things took a dramatic turn for Summer when she headed into Royâs Rolls and accidentally overheard George and Christina discussing her situation.
The pair admitted Summerâs position wasnât looking good. Especially after police discovered sheâd lied about where she was on the night Theo died. Even so, both George and Christina insisted they didnât believe she was capable of murder.
But for Summer, hearing arrest talk was enough to send her spiralling. Panicked and emotional, she quickly decided the best option was to leave Weatherfield behind and flee to America.
Todd tried to reason with her, but the conversation soon became heated. Summer admitted she had seen Theo on the night he died. Terrified she may have been the last person to see him alive before the killer, she then turned her anger on Todd and blamed him for bringing Theo into their lives.
After eventually apologising, Todd agreed to help her escape. However, before they could get anywhere, DS Connor-Swain arrived and arrested Summer.
What Todd didnât realise was that George had already informed the police about Summerâs whereabouts on the night of Theoâs murder.

Sarahâs âstrangeâ behaviour
Away from Summerâs arrest, Sarah continued to raise eyebrows with her strange behaviour.
During tonightâs episode, she lashed out at colleagues at work. This prompted Carla to hand some of her responsibilities over to Michael as it became clear Sarah was struggling.
Ever since the attack on the night Theo died, Sarah hasnât seemed like herself. With Kit away on secondment, sheâs also admitted she feels increasingly unsafe.
After being knocked out by Jodie, Sarah has been relying on alcohol. And, sheâs been struggling to keep her emotions in check. But viewers have also noticed how anxious she becomes every time a new suspect in Theoâs murder is mentioned â whether itâs Gary or Summer.
Thatâs now led some fans to wonder whether Sarah knows more than sheâs letting on.
Coronation Street fans suspect Sarah killed Theo
On the night Theo was killed, Sarah disappeared for a period of time after leaving the wedding and before making it back to the Platts. And with her fiercely protective nature towards Todd, some viewers are convinced she may have confronted Theo herself.
One fan theory online suggested: âAs itâs been announced that it will be a shock who the killer is, is it possible that Sarah did it before Jodie knocked her out? Sheâs very protective of Todd and Iâm not convinced that sheâd be as jumpy as she is simply because of her being attacked.â
Another fan wrote: âWhat if Sarah is so jumpy not because of the attack but because sheâs the one that killed Theo?.â and a third person shared: âSheâs definitely got something to do with it.â
Could Sarah really be hiding the truth about Theoâs murder, or is Coronation Street leading viewers in the wrong direction?






