pronoun
who
HOO/huː/
The person or people being asked about or referred to.
The teacher looks among the volunteers to see who raised a hand.

Etymology
Old English hwa already asked 'what person.' The modern pronoun preserves that question of identity, whether the answer names one person or several.
In context
He he died on the Monday and the funeral was on the following Saturday. And uh after that they really began to focus on who will be the successor.
More examples
- She is the person who called.
- Who wants another sandwich?
- Tell me who is coming.
Forms
who · whom · whose