Or the first broke because of the rot already installed here. That doesn't better over time. Sadly, chances are that the last part will come down too relatively soon, if not removed now.
For the big suspended mess, pay very close attention to the parts not rigged. With a piling like that, the one on the top can stabilise and maintain still the one pinned under it. You try to remove the first pick, and as the weight lessens, the whole mess can start to move and shift. Try to secure if you can, before cuting/lifting (it doesn't seem so easy with this crown). Careful.