cassie dalton ****SPOILER***********

[nineCavalry]

so i tried to get the trappers that killed her husband, but i don't remember what she told me where they are.
i already killed one major trapper settlement(MS Azalea) but it still didn't complete the quest.
anybody know where it is?
the quest does not provide summary and has no marker on map

[Vain]

Lighthouse in the south west of the island. South of the children of atom base. It should show up on your map.

[nineCavalry]

ok, thanks