I think that he either posted the wrong link, or that the site updated itself such that the link he posted lands on a page that is EXCEPTIONALLY NOT FUNNY IN ANY WAY!!! OP - assuming you made an error you may wish to amend your link.
I'm assuming he is foflmfao because the guy is serving a prison sentence for the shooting of his g/f. He should be swinging at the end of a rope instead, but that's just my opinion.
If you scroll through the pictures and read the captions, im sure you will realize why he found it funny. I found some humor in it also..but im definatly not foflmfao.