Tina has been playing with fire in recent months following her affair with Peter Barlow and her ongoing feud with his sister Tracy.By betraying Peter's wife Carla and angering Carla's brother Rob, there are plenty of suspects for the police to investigate.In exclusive online videos, Tina is confronted by each of her potential killers - but only one of the scenes will be aired on UTV next week.Viewers will see Tina plunge to her death following a fight on the balcony of the builder's yard.But who will be revealed as the killer?Peter is desperate to keep Tina from revealing their affair to his wife Carla, but what lengths would he go to for her silence?"Peter fears he is going to lose Carla and the baby," said Chris Gascoyne, who plays Peter."He never really loved Tina, he said he did but he didn't. Carla is the love of his life and he is desperate to save his marriage - getting rid of Tina could be the only option."When Carla learns the truth about Peter's affair with the babysitter, there's every chance that her rage will be strong enough to ensure Tina never lays a finger on her adulterous husband again.Alison King revealed: "Carla will want answers but when she confronts Tina emotions will be running high and hell hath no fury like a woman scorned!"Nothing gets past Tina and when she rumbles Rob and Tracy for their dodgy dealings with Tony she isn't afraid to make it known.With the memory of prison still fresh in his mind, Rob's understandably cautious of Tina's threats and when the penny drops about her affair with his sister's husband, Rob has not just one but two reasons to lash out..."Rob is not someone who is afraid of confrontation and will be determined to try and persuade Tina to keep quiet about both the affair and what she knows about the business," said Marc Baylis, who plays Rob."If she refuses then who knows what could happen..."And with an infamous hatred for Tina, Tracy has a longstanding reason to seek revenge on the woman who almost cost her her most successful relationship to date.With Tina keeping a very close eye on the ins and outs of Barlow's Buys, she's likely to use this as ammunition to wind Tracy up; but will Tracy be able to resist the bait?Actress Kate Ford said: "Tracy has committed murder before and got away with it and she certainly takes no prisoners when it comes to getting revenge on people who have wronged her."Tina's death will have far reaching consequences for many residents as the police start the hunt for the killer - but will they get the right person, or will the murderer walk free leaving an innocent suspect to take the rap?Tune in to Coronation Street on Tuesday 27 May from 9pm on UTV when Tina's killer will be revealed.