Powell's somewhat opaque account does not square with DPD'er Joe Smith's, or Weitzman's.

Smith said he approached the Secret Service-badge flasher in the GK area, who looked a little grimy, and then was shown the ID. 

Powell also said he would have said, "I’m a special agent with military intelligence. And show my credentials."

Additionally, Powell's ID did not looked like Secret Service ID.

AI:

Identification cards issued to the U.S. Army's 112th Military Intelligence Group in 1963 did not look like U.S. Secret Service credentials.

Standard Military

Design: Personnel from the 112th Military Intelligence Group carried standard Department of Defense or U.S. Army identification cards (such as Armed Forces identification or Geneva Conventions cards), which featured distinct military branch markings, serial numbers, and service insignia. [1]

Secret Service Credentials: Secret Service credentials utilized a completely different layout, seal, and departmental identification specific to the Treasury Department (under which the Secret Service operated at the time), frequently accompanied by a specific metal badge rather than a standard military card layout.

Both Weitzman and Smith said they saw Secret Service ID, not another ID. Neither said the man they approached ID'ed himself as "Powell," or said he was from military intelligence, and neither saw the man holding a camera.

I put low odds that both Weitzman and Smith approached Powell, and both mis-read the ID they were shown, and then both failed to note Powell was holding a camera.

The Z190 1st shot fits well enough with the 1….2..3 pattern and it’s closer  to Norman’s 5 sec sequence.

There is still the Tague problem however. It doesn’t seem to be plausible that a  Z313 fragment could fly over the windshield and drop down if it had enough velocity to haves chipped the curb. Maybe a lead fragment traveling at 200 ft/ sec  can chip off  a small particle of concrete from the curb?   IDK.

One of the unexplained curiosities of the JFKA is that not one but two law enforcement officers separately encountered a man in the GK area, in the immediate aftermath of the JFKA, who flashed a Secret Service credential at each of them. 

Sure, one can assume anyone can mistake, even a law enforcement officer looking at and noting ID 11.22.

But two law enforcement officers, men in good-standing?

AFAIK, the Weitzman and Smith were in no meaningful way connected to each other, had no agendas or axes to grind, and were not CT-addled lefties.

I conclude someone flashed a Secret Service credential at Weitzman and Hill, in separate incidents, on 11.22.

There were no Secret Service agents in the GK area on 11.22, by the records and statement of the Secret Service itself.

Moreover, no one from the Secret Service ever came forward and said, "Oh, that was me on the GK. It was my day off, but I came down to watch the motorcade."

Similarly, no one from another agency, such as the federal ATF, came forward and said, "Oh, that was me. The ATF badge resembles the SS badge." 

Of course, the location of the ersatz Secret Service-badge flasher, near the GK, is where credible witnesses saw a puff of smoke (Sam Holland and others) and where from many ear-witnesses thought they heard gunshots.

The HSCA, and Tink Thompson, say there are anomalies on photographs indicating a person was in the GK area, during the gunshots, and then left.

There is the unsettling movement of JFK's head post Z-312.

Add it up, and I have reasonable doubts about LNT's (and most CT's, but that is another topic).

I use the AI app that came with my laptop which is CoPilot. I think that's the Microsoft AI app. I have a smartphone but i hate the thing and rarely use any apps with it. I was happy with my flip phone until Spectrum fiber optic became available in my area and I save money by bundling TV, internet, and mobile. If it weren't for that, I'd probably go back to my flip phone. The smartphone does nothing to make my life easier. CoPilot is useful but I wouldn't bet on the accuracy of its answers.

I know well the problem of inaccuracy with Ai, but Grok has a good record from my experience. Not perfect mind you. But the following is worth considering

https://x.com/i/grok/share/f4b0c295a9a446d880d81dd59cb3e15e