[jch10]

Whose name is on the order? We know who is responsible but who is the one who had to make the actual order?

[jonascord]

Hitler called Himmler into his office one day for a little discussion...
Himmler called Heydrich into his office for a briefing...
Heydrich had a meeting with the representitives of various Reich departments on 20 January, 1942 at Wannsee...
The trains started to roll East a few weeks later...

Written orders? Yeah, RIGHT!