Answer:
Yes, he was responsible for WW2 and was a murder of millions of people.
Step-by-step explanation:
He started off WW2 by invading Poland and then taking all of Northern Europe. He murdered millions of people, jews, and other nationalities and groups. He was a very evil person.
Eventually, he was stopped. But his crimes and the people who he murdered will be remembered forever.
(I Hope it helps!)