Was Rainsford Justified In Killing General Zaroff Justified

In the short story “the most dangerous game” Rainsford was justified in killing general Zaroff.
Rainsford was a writer and a hunter and he was on a boat they were near by a island called “ship wreak island” they crashed but only few died but Rainsford was the only one to live after the terrible ship wreak Rainsford swam to the island than he found a house but it was more a big one than he went there wondering is anyone was there and that where he met general zaroff,zaroff was also a hunter but he hunted all his life but all a sudden he started to bore hunting so zaroff made a new game that hunted men zaroff tried to make Rainsford see a liking to the game but Rainsford refused than zaroff put Rainsford into the game by force