Polls voted by fans both here on the Coronation Street Blog and over on Digital Spy have leaned heavily to fans thinking it is Frank's mum Anne Foster who's killed Frank. But would a mother kill her own son? Or is she as mad as Frank undoubtedly is? Other fans think it could have been his girlfriend Jenny who's killed Frank.
ITV posited five suspects for fans to ponder on - Kevin Webster, Sally Webster, Michelle Connor, Carla Connor and Peter Barlow.
As we now know, it can't have been Peter as he was with his counsellor from the Alcoholics Anonymous group. And we know it can't be Sally because we've all seen the pictures of Sally lying unconcious after the killer tries to attack her, we'll see that happen tonight. That also rules out Kevin Webster as the killer because Kev wouldn't attack Sally, especially if they're going to get married again.
And so tonight, Monday 19 March, all will be revealed. I'm still torn as to who is the killer. I had long thought it was Anne but am veering towards Jenny now. I know I could be wrong.
Well done to ITV and Coronation Street for making Who Killed Frank Foster one of Corrie's best kept secrets - and out of the tabloids - in a very long time.
See also: Actor Andrew Lancel interviews Frank's killer on radio on Thursday night this week.
Follow the Coronation Street Blog on Twitter and Facebook
