I’m confused by the article.
First....”Lopez said he jumped into the water and “I double underhooked him....”
Then....”By the time Lopez arrived on the scene, other beachgoers had dragged the unconscious man ashore and started CPR....”
What exactly did Mr Lopez do?
Good question. Not particularly well-written description, or perhaps some stories got crossed -- there were four authors on this story and it may not have been edited properly. Hard to imagine doing CPR while the man is still in the water, though possibly he was in shallow water.
Never misunderestimate the “ability” of reporters and media editors to mangle a story.