What happened with the Native Americans and Columbus after he arrived?

When Columbus arrived the Arwaks treated him with love and kindness. They gave him and his men gifts, food and water. but Columbus went there for THREE reason: gold, god, and glory. His men killed most of the Arawak people by order from King Ferdinand who gave Columbus all his orders. He also killed some people to bring spices, animals, and many riches back to "the old World"