According to religious texts, specifically the Bible, Abel, the son of Adam and Eve, was the first human to die.
Abel's Death: A Biblical Account
The story of Abel's death is found in the Book of Genesis. It recounts how Cain, Abel's brother, killed him out of jealousy because God favored Abel's offering over his own. As stated in the reference, "the first human to die, according to the Bible, was Abel, the son of Adam and Eve. In the Book of Genesis, Abel is killed by his brother Cain out of jealousy, as God favored Abel's offering over Cain's. This story is often considered the earliest recorded instance of human death in religious literature." (04-Jun-2017)
While this is the first human death recorded, it's important to understand that this perspective is rooted in religious belief.