he is afraid for his safety, and maybe that of his family (if he has one?)
I don't think any of the ones speaking out are all that afraid. He knows people in his town will know his voice and be able to connect the dots unlike the jury themselves. lol
I really don't think anyone is going to harm the jurors. I honestly don't think anyone is going to kill ICA either. I think she however might manage to get herself killed one day when lying to the wrong people.