We have both argued the case from both sides but even when I thought him innocent, there were things I wasn't comfortable with. I am not comfortable about the silencer now that I believe he's guilty but regardless of whether there is any forensic evidence - there is too much circumstantial evidence for him to be innocent and Jeremy isn't good at answering difficult questions - an innocent man wouldn't have a problem.
In regards to you messaging Jeremy, In my opinion you questioning him on various if not many details about the case made him feel you were questioning him on a presumption of guilt. And if you cant prove your innocence why would he bother spending time answering you? You clearly asked him difficult questions thus exposing your motive was not to support him
He will have people writing to him allot with covert motives to try and pick at him. Even well meaning supporters tell me they sometimes write to him and get no reply, So either he has no time or he is paranoid about their motives.
You might want to try writing to him again with a different name/address and use a different tone and be patient building rappor, You will have to manipulate Jeremy into thinking you are on his side 100% otherwise he wont bother, guilty or innocent he has better things to do.