Bruce Almighty said:
IMO, the poster that picks the death first should be the only one that gets points.
I used to work at a place where a group of us did a death pool. The first year, we met in the conference room and drafted our picks in rounds like fantasy football. Nobody could pick someone who was already taken. There were about 15 or so of us or so, so the draft worked pretty well. I think we drafted 10 people if I recall.
Eventually we turned it into a larger game with 50 or 60 players and we all picked remotely via email (much like the TexAgs game). The more people who predicted the death, the lower the payout. The base payout for a death was 100 points. If multiple players correctly picked a death, that 100 points was divided up by the number of people who chose that person.
Who everyone picked was not revealed until after all picks were in, so you didn't know if you were picking someone everyone picked or not. There was a lot to keep up with as commissioner, so we let him pick his people after everyone else made their picks.
We had extra payouts for deaths depending on the cause. Deaths from a lengthy illness, like cancer or failing health from old age that was known at the time of the draft got no bonus points. Deaths from unexpected sudden fluke illnesses got extra points and tragic unexpected deaths (Malcolm Jamal Warner's drowning or Greg Biffle's plane crash for example) would have received more bonus points. Suicides, fluke accidents, murders...they all paid bonuses at varying levels. Sometimes we had deaths that didn't pefectly fit a category or overlapped, so we would vote as a group as to which category it fit in. Overdoses for example. Also, I imagine the category of Gene Hackman's death was heavily debated if they are still playing.
The bonus payouts were divided among all the people who picked the death as well, although unexpected deaths rarely had more than one or two players pick it.
Although all the bonus points for weird deaths made it more fun, it usually guaranteed that if you were the person who got lucky and picked Malcolm Jamal Warner for example, you were almost guaranteed the victory. I remember the last time I played (2016), one guy picked both Prince & Chyna (who both died within a day or so of each other) and destroyed us all with just those two picks!