Going by the bits and pieces I've picked up from spoilers and so forth, my impression is that John Stape murders Charlotte by bashing her head in with a hammer. Nice. (What is it with Corrie just now - tram crashes, bloodbaths, murders...)
Anyway. Will this really happen, or is it just another red herring? I haven't the foggiest.
However, Stape is definitely reading about a nine point nine nine on the tension scale at the moment and despite showing flashes of the old Stapian wit it's clear that his nerves won't take much more. He's laughing maniacally and getting into bother from Peter Barlow for screaming at wrong numbers in the bookies. He's thinking about Edgar Allan Poe stories and wondering if it's his heartbeat he's hearing or Fishwick's. Is it Charlotte who's driving him to the brink of insanity by making the silent phone calls and sending the mysterious flowers and letters? Personally I'd be surprised - but then I generally am. Who else could it be though? Who else knows about the body hidden in the old sump hole under the factory floor?
I do hope that John doesn't bash Charlotte's head in with a hammer! I could live with him bungling another death, but not full-blooded murder. However...if he DID get done for murder, perhaps there could be an insanity plea, and he could stay in Corrie albeit as an inmate of a maximum secure unit, receiving therapy sessions and being visited by Fiz and the baby on a weekly basis? I just don't want the Stape saga to end!