In order to get the death daisy you must kill one of the people in your tribe. Here's a simple way to do it.
1) Chose the Sim you want to kill
2) collect the materials you need to build the room
3) Build the room somewhere where it won't get in the way.(make sure it is completely closed with only one door)
4) Change into the Sim that you want to kill and put them inside.
5)Quickly remove the door.
6) Wait until they die then remove the walls.
That's all you have to do. But remember to fix the walls if they get damaged by the warthog or rain. I recommend to try and stay in the same home so you will know when the Sim is dead.
Added by: Dark_Moon Jan 20th 2008, ID#28913