In the wiki for season 9 it says,
The first death occurred before the Hermits had even obtained iron, with GoodTimesWithScar being slain by MumboJumbo.
This isn't actually the case. the 1st death of the season is when GoodTimesWithScar fell INTO the world, from 'the land between seasons' where he finished in season 8. I know it sounds picky but it's the truth, watch his vid if u don't believe it.