What you are saying is that if one person has lied to you that would be enough for you to never trust anybody else ever. I am sure at some points in your life you have been lied to by someone at least once. I am pretty sure that you haven't gone through life not trusting anyone else, in fact I would bet that at least one person in you life lied and then apologized and it was forgotten.
Everyone has their price and their breaking point. From what I understand Steve has been on the up and up until now and suddenly he fell apart, this is indicative of something life changing has happened to him.
I by no means am justifying what he has done, to the contrary. I am just tring to say that a person that had been OK for so long and went aerie in such a big fashion has problems that are much bigger than being banned from this forum. I hope you all eventually get satisfaction from Steve but at the moment it seems unlikely.