Coronation Street‘s Betsy Swain suspects her own mother next week as the Joel Deering murder

mystery continues. Betsy can’t help doubting Lisa when she learns that Joel was in a fight

with a mystery person on the day he died. Joel’s body was found in the river earlier this month,

two weeks after he’d mysteriously disappeared. A post-mortem revealed that he was already dead when he hit the water, so the police immediately launched a murder investigation.

Next week, more potential clues are shared with viewers as Lisa secretly examines some unexplained bruises in the bathroom mirror.

Betsy walks in and quizzes her mum over where her injuries came from. Lisa claims that she was hurt during a body combat class, but Betsy isn’t convinced that she’s telling the truth.

As Betsy digs a little deeper, she finds that Lisa has a bottle of painkillers dated September 28. This seems highly suspicious too, as Joel was killed the day before.

In a chat with Daisy Midgeley, Betsy later learns that Joel was in a fight on the night that he was killed.

Feeling under pressure as the evidence seems to be mounting against her, Lisa suddenly changes her story. She lies to Betsy, making out that she got the bruises due to an office injury.

Corrie fans saw Lisa threaten Joel in the days before his death, clearly sickened by the way he’d treated Lauren Bolton, Betsy and other young girls. Did she go rogue by getting him out of the picture for good?