In dramatic scenes which air in tonight's double bill of the soap, the Weatherfield favourite finally puts the pieces of the puzzle together on the sad day that he buries his late wife Molly.
Although Tyrone knows that he is not baby Jack's real dad, he starts the day with no idea that the biological father is his business partner and best friend, who had a clandestine affair with Molly in 2009.
However, tonight everything changes as Kevin's seething wife Sally struggles to hide her fury over his infidelity. When she storms out of the church during the funeral as the stress of the secret becomes too much to bear, it's clear to Tyrone that something isn't right.
Later, when Tyrone spots Kevin and Sally arguing at the cemetery, realisation finally dawns and a furious showdown follows as Tyrone lunges at the man who destroyed his happiness…
Here, DS takes an in-pictures look at the latest Weatherfield storyline twist:
Coronation Street airs tonight at 7.30pm and 8.30pm on ITV1.
> Click here to read our Coronation Street spoilers
