Hi, came on a few minutes ago to ask exactly the same question! I had a look on the Emmerdale website though, and don't think there's any way of finding out. They have filmed 10 scenes with a different person each murdering Tom King, and not even the cast or crew willknow who it will be.
ITV are doing an interactive 'Whodunit', and it the public are given clues and evidence to try and solve it themselves. Really doubt anyone could possibly know yet. The 10 suspects are Carl, Jimmy, Matthew, Rosemary, Bob, Jamie, Terry, Len, Chas and Grayson.