Question

Who killed LAPU LAPU in philippine history please?

Answer 1

It's not clear, but we know he was killed in the Battle of Mactan. By exactly who we don't know, because initial news reports that came out were sketchy. But the killing was generally attributed to Magellan even though there were no witnesses to verify that, simply because he was the leader of the visiting team.

That's what i found after a little google assistance.