I have noticed an interesting trend; if you follow the social media pages of the 'Free SPM' movement you may have seen it too. When one persistent person pops up to sling insults and try to undermine what we're doing here, a swarm of them always seems to follow. Whether on Twitter, Facebook, or here, they like company.
I don't engage with them like I used to, but if you choose to do so please make sure you're doing it calmly, even nicely. They call us child molesters and make threats against us because they want a reaction. The most maddening thing in the world for them is a quiet, educated response.
You're asking them to question something that most of them have accepted on faith; that a conviction is proof of guilt. It's a scary thing for them to be told that the justice system is not just; accepting it would mean that the basic precautions that most of us take like following the speed limit, paying our taxes, and not hurting others don't mean shit in the face of prosecution. It would mean that not murdering, raping, or stealing is no defense against a decades-long prison sentence.
So have patience, and have compassion. You don't have to let their arguments go unanswered but understand that they're struggling against knowledge, and no amount of force is going to win them over. Only time and information can do that.