I agree.
After the Bernardo trial ended, I was only sequestered for one evening, and basically I got the question, “What took you so long?” You can't answer that. You can't discuss what the other people in the room would like to do or not like to do. If there were a court-appointed psychologist who was already sworn to confidentiality, that would certainly alleviate some of that pressure.
Again, you've seen the evidence and you've decided that the person is guilty, but as Patrick said, you are still sending that person to federal prison for the rest of their life. You shouldn't feel guilty, but somewhere deep down you still do. Talking through those things could be quite helpful.