Polonimum: Behind the assassination of Litvinenko

Just like the old days in the cold war. Boris and Natasha making big trouble for Moose and Squirel again!

“And why use some compound that most people wouldn’t know how to spell much less to get and that very few people have access to?”

You just answered your own question.

Also, you only need the tiniest amount of polonium to accomplish your task. And it takes long enough where you have time to make your getaway. Hitting the guy with an overdose of digoxin, for example, takes effect right away, and is easier to control. It’s also fairly straightforward to mitigate.

Picking something with almost no tox info guarantees

1) It will take the docs a long time to figure out the problem (if ever)
2) They won’t be able to help him even if they do figure it out (maybe)
3) There is no known way to detox someone poisoned with polonium. Guaranteed death. And safe for the perp to carry because of the low energy alpha rays.

Brilliant, really.