The whole thing with "policemen" from the future coming back to kill Hitler reminded me of a story that appeared in British sci-fi comic 2000AD back in 1980
There is an ongoing series called Strontium Dog which features Johnny Alpha, a mutant bounty hunter who works for the Search/Destroy Agency.
In the particular story in question a massive "bounty" is place on Hitler's head by an organisation dedicated to punishing criminals from the past and Johnny Alpha and several other S/D agents (informally known as Strontium Dogs) competer to collect the reward
There is an ongoing series called Strontium Dog which features Johnny Alpha, a mutant bounty hunter who works for the Search/Destroy Agency.
In the particular story in question a massive "bounty" is place on Hitler's head by an organisation dedicated to punishing criminals from the past and Johnny Alpha and several other S/D agents (informally known as Strontium Dogs) competer to collect the reward
