Frank was found lying dead on the factory floor following a destructive final day on the cobbles, and now fans have been left to wonder who was responsible for the crime.
Sally was the one caught kneeling over Frank's body with blood on her hands, but Coronation Street bosses have also named Carla, Kevin, Michelle and Peter as suspects in the case.
Andrew Lancel, who played Frank, has also confirmed that viewers should not rule out any other characters as the whodunit mystery plays out.
Here, Digital Spy invites you to crack the case and vote for who you think killed Frank. Was it one of the five suspects, or did somebody else bump him off?
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