Final answer:
La Salle returned to New France after his colony failed and was later killed by his colonists.
Step-by-step explanation:
After his colony failed, René-Robert Cavelier, Sieur de La Salle, returned to New France. He embarked on several explorations in North America, including an expedition to the Mississippi River. Unfortunately, La Salle was killed by his own colonists in 1687 during an internal conflict.
Learn more about La Salle's post-colony failure and demise