There was an Argentine hunter in the 60’s, who hunter jaguar with a spear (spear and dogs). Lots of people around the world hunt wild pigs with spears and dogs.
The British used to hunt wild pigs with spears and horses, at least until WWI.
They considered it good training for mounted warfare.
Peter Capstick had a chapter on him in "Death in Silent Places". Siemel's own book, "Tigerero" might be available on the web.
Siemel hunted in the Matto Grosso area of Brazil. Never realized how huge Jaguars can be until I read Capstick's account.
I actually know that....I was being sarcastic