http://abclocal.go.com/ktrk/story?se...cal&id=8694721
If you read through some of the stories - he may have a history of bragging about it being ok to shoot someone if you announce some mantra and brandishing to intimidate his neighbors.
Kind of answers the question that your past utterances will be researched. They seem not be allowed in the trial but if you trust jurors not to hear of such - that might be naive.
I've mentioned before that if something is excluded by the Judge in front of the jury - some studies indicate it has more impact. If it was excluded without them knowing about it - he dodged that. Of course, the jurors might see it anyway (- don't look at the paper or TV -
).