Heydrich's car

[Surpmil]

That's just a random theory proposed by an ex-chem weapons scientist, because of the mods made to the anti-tank grenade. No evidence exists to support it, or no evidence exists available to the public, to support it. What medical records exist of Heydrich's treatment afterwards indicate he showed none of the systems associated with botulism, the claimed agent used. One of the 2 Czech agents that did the attack was also injured by the exploding grenade and had it been a bio agent, he would have been likely died or showed symptoms before the Germans eventually got to them. Given the crude mods to the anti-tank grenade, and the time and method taken to deploy them and it all the way to Prague, I think its a very fanciful theory.

It's a book I read in university, so can't remember much more about it, but one might think an ex-chemical weapons scientist would be able to bring some expertise to the matter.

Biological and chemical weapons are a Pandora's Box that was not opened, as far as we know, in WWII and the reasons are obvious: fear of ever-escalating reprisal, and of course the fact that so many of the WWII leaders had personal experience of chemical warfare in WWI.

So if there was such a component to the assassination of Heydrich, it would have been a very well kept secret indeed and only those likely to buy shares in the Brooklyn bridge would expect to find documentary evidence in the P.R.O.

You may well be right, I just mention those points as context.

Truth is often stranger than fiction:

Reinhard Heydrich - Wikipedia
Heinz Heydrich - Wikipedia
Albert Göring - Wikipedia