From the earliest starting point of the war, an objective of the Union armed force was to catch the Confederate capital at Richmond. Petersburg had been the last barrier in Grant's way. Following a nine-month attack, Grant at long last drove Lee's armed force out of that city. Jefferson Davis realized that Richmond was devastated.
The only difference between the two is the action in which it was done. They are still similar because you are physically hurting another individual.
He is known as an “Indian Killer” because he created the “Indian Removal Act”