[aristeides]

If the OKC explosive included nitroglycerin and dynamite, is there any place where there would still be traces that can be tested for their presence?

[Lael]

If the OKC explosive included nitroglycerin and dynamite, is there any place where there would still be traces that can be tested for their presence?

The Inspector General's Report on the FBI Laboritory indicated that not only was there virtually no ANFO residue at the site, but it also concluded that the bomb could have been made of Dynamite, since the FBI ignored the presence of Dynamite Wrappers and casings.

The FBI said ANFO only because Terry Nichols had bought some. To shape the evidence to fit the crime and "criminals" is called "FRAMING". Yet the Judge supressed the Inspector General's Report when the Defense sought to impeach the FBI "experts."

PS, I'm sure that McVeigh had a role, but we still don't know if he was the mastermind, or whether he just drove a truck.

See The Secret Life of Bill Clinton by Ambrose Evans-Prichard for a detailed discussion, supported by End Notes,

[roughrider]

The building debris is still buried in a pit on federal land. It can be dug up and analyzed. It should be noted that one victim's bodybag contained a shred of a dynamite wrapper.

[GingisK]

is there any place where there would still be traces that can be tested for their presence?

Sure! That is why the government razed the building and covered the debris.