Luigi Manion, who's accused of gunning down United Healthcare CEO Brian Thompson, is back in court this week. And the hearings largely focus on what kind of evidence is inadmissible in court. I was in court all day along with several dozen reporters as well as around two dozen members of the public, some of whom had been camping out outside the courthouse since Thursday night.And this is just a pre-trial hearing. We are not in the actual trial yet. Manion's defense team is trying to bar some pieces of evide ...