So you see Tippit's lack of precaution as someone he has just exchanged angry words with backs away from the car with hands held up, as his police radio crackles constantly about the search for the president's killer and then just walks into Oswald's spray of bullets without even getting his gun drawn as being how any seasoned cop would have gotten themselves killed as well ?
" Tippit didn't secure or guard his pistol and the first shot hit the officer in the temple, suggesting Tippitt was looking away."
No, I am asking YOU to explain what YOU think the significance of the points you are making actually is. You say on the other thread that Tippit was trying to get Oswald into the car as quietly and with as little notice as possible. OK, this is your theory, but WHY? What was he going to do with Oswald in the car? Why would his actions be consistent with someone trying to get Oswald into the car as quietly as possible? I'm not pretending not to understand - I really don't understand.
My theory is that Tippit simply didn't realize he was in a life-threatening situation until it was too late, but I'm willing to listen to your theory if you will ever just state what it is. The reason that Tippit wanted to get Oswald into the car quietly was ... what?
Just saying "Those don't seem like the actions of a hardened cop on the day of a Presidential assassination" really doesn't tell us anything. And I might say "Well, yes, they do, if he was simply stopping a guy who turned and started walking in the other direction on a residential sidewalk far from the scene of the assassination less than an hour after the assassination." It strikes me as ad hoc to insist Tippit must have had "This could be the assassin!" in the forefront of his mind.