I've said this multiple times now, but I think it was a mistake for the defense to try so hard to deny that Karen ever said "I hit him." I think it is actually rather indisputable that she did say that, or something very similar to that. She said it to too many people, including people with no obvious connection to the "conspiracy."
I believe that she said those words, but she was in a state of extreme emotional disturbance. She was confused. She was distraught. She was hysterical. She was trying to figure out what happened what happened to John. That's what I believe really happened, and I don't see it as being equivalent to a confession.
But, by trying so hard to deny that it happened, the defense may have actually made it look worse.
Based on the medical testimony, the engineering testimony, and KR's reaction to John's body being discovered, and the fact that she apparently turned down a plea bargain for 16 months, I firmly believe that KR is actually innocent. But I still don't find it believable that every single firefighter or paramedic who claims to have heard her say "I hit him" could all be lying.
Police lie during trials all the time to make convictions easier to achieve, I believe that 100 percent; I don't believe that to be the case for firefighters or paramedics.