I guess you have greater faith in humanity than I do. I tend to trust that when a poster posts something that makes them sound like a raging lunatic, that that is how they are comfortable being perceived. I tend to take people at their word.
"Most cases that result in guilty verdicts are based on circumstantial evidence."
I don't believe this, do you have a link? For sure some evidence in a lot of cases is circumstantial.
I am not a lawyer or a legal scholar, I have never been selected for a jury or gone through the selection process. However, I would gladly bet my lunch that at any jury selection process in any court in Canada, if a juror candidate said that they believed someone was guilty of murder because they were driving away from police in a murder-victim's stolen car, that person would be excused from jury selection. 100%