Definitely not real. Jason Voorhees is a creation of horror fiction. The character exists only in the realm of imagination and entertainment, not in the real world. There are no actual incidents or people like him.
Jason Voorhees is the infamous killer in the Friday the 13th franchise. He was a boy who drowned at Camp Crystal Lake, and later returns as a vengeful, undead slasher.
Jason Voorhees is the infamous killer from the Friday the 13th franchise. He was a deformed and bullied child who drowned at Camp Crystal Lake. Years later, he returns as a vengeful spirit to terrorize campers.
Jason Voorhees is purely fictional. The character emerged from the imagination of horror writers and filmmakers, not from any real-life events or people.
Maybe the person Jason saves is a young child who got lost in the woods. Jason, in a moment of uncharacteristic kindness, leads the child out of the dangerous woods. The child is initially terrified of Jason but soon realizes that he means no harm at this moment. It could be that Jason is somehow reminded of his own lost childhood, which makes him act this way.
He could be portrayed as having a glimmer of humanity left. His actions of saving someone would show that there is more to him than just being a mindless killer. Maybe there's some internal struggle within him as he goes against his usual nature.