In Coronation Street , David Platt 's wife Kylie Turner is stabbed and killed by Clayton Hibbs ( portrayed by Callum Harrison ) after she tried to help her friend Gemma Winter ( portrayed by Dolly-Rose Campbell ) .
David 's storylines have included his sibling rivalry with half-sister Sarah , his teenage rebellion , his relationship with Tina McIntyre ( Michelle Keegan ) , pushing his mother Gail down the stairs , his marriage to Kylie Turner ( Paula Lane ) , becoming a father to his and Kylie 's daughter Lily Platt , his rivalry with Kylie 's ex-partner and Max 's biological father Callum Logan ( Sean Ward ) , helping to cover Callum 's murder after Kylie kills him and becoming a widower when Kylie is stabbed and killed in a knife attack .
David Platt -LRB-Coronation Street-RRB-