I say he's innocent because NOTHING has been proved otherwise. Yes,it's as simple as that.
To have been arrested,charged,convicted and then imprisoned doesn't mean that he's guilty.You'll have to do better than that.
He wasn't actually arrested for the murders. He was " weaned " into the system by means of firstly being charged with the burglary at the caravan sight,as it being his first and only offence,so EP used that to their advantage. Then came the questioning about the murders and because nobody liked his gung-ho attitude,that,unfortunately,got Jeremy where he is today.