Stop asking for the impossible

how about a movie where a guy time travels to kill baby hitler, gets executed for it, and then hitler has seven brothers who did worse things than he.

How would the criminal jusrice system prove someone went back in time to murder someone else? The bullet would be in the present, but the gun that fired it would be decades in the future. You need to be able to link a bullet to the gun that fired it.

you see he is caught with baby hitler's bleeding corpse in his hands, along with the dagger he used to make baby hitler a bleeding corpse.