Now, he looks like someone you'd invite to dinner. The jury is sitting there looking at your client every day. We're a visual species. We like to assess people visually. Sometimes, the visual aspects are more important than disembodied facts.
Prosecutors send their own signals by having family members of the victim in the courtroom.
As a defense attorney, you need to combat the visual cues the state is giving the jury. You do that with how your client is being presented. Obviously, clothes and the way they appear in court is an important part of that. He said there's a danger in overdressing a client. They look like a defendant.