I have two thoughts. A ) I think when a presser is given in these types of case, the PD designates the most ' poker faced' member of the department for this very reason. That's just a guess but I'm sure some are better than others at keeping it together and not getting flustered by the questions, etc. B ) I almost never watch videos in cases because I have drawn at least 100 wrong conclusions by hearing how the family, LEO's or witnesses talk and watching their mannerisms. Unless you know that chief or spouse or neighbor in real life, how can you ( we all, public) know if they are looking normal or guilty, etc? I have anxiety, some ocd and maybe a couple of other of the ' d's and I can tell you if I was being interviewed on the news about the price of gasoline, WSer's would have me reported for a crime because I am awkward, darty eyed, fidgeting, paranoid, nervous etc. Use caution when drawing conclusions from the body language of strangers. Remember a straight up sociopath can lie to your face and you'll believe them all day long. My :twocents: