The FBI investigates Trump assassination attempt by scrubbing physical evidence??

(This is Part-17 in a series; for Part-16, click here.)

I keep pointing out reasons to reject the mainstream narrative describing what supposedly happened at the July 13 Butler rally.

Congressman Clay Higgins has been carrying out a one-man investigation at the scene in Butler. You can read his findings here: link in the footnote.

Higgins’ recent statement: “The FBI released the crime scene after just 3 days, much to everyone’s surprise. I interviewed several First Responders who expressed everything from surprise to dismay to suspicion regarding the fact that the FBI released the crime scene so early after J13.”

“It should be noted that the FBI was fully aware of the fact that Congress would be investigating J13. The FBI does not exist in a vacuum. They had to know that releasing the J13 crime scene would injure the immediate observations of any following investigation.”

“The FBI cleaned up biological evidence from the crime scene, which is unheard of. Cops don’t do that, ever.”

Cleaned up WHAT KIND OF biological evidence? Blood? Tissue? Belonging to whom?

This means only the FBI lab possesses samples of what they scrubbed from the scene in Butler. Field agents may have purposely omitted taking some samples—meaning they simply destroyed certain evidence they never wanted anyone to know about.

Obviously, a large crime scene can contain mountains of physical evidence. Including biologicals.

WHY did the FBI scrub evidence? Why did they effectively cut off Congress from doing its own crime scene investigation?