I think you may be right about this photo. JVDS certainly isn't sporting that cocky, arrogant grin that we're all used to seeing.
He doesn't look too pleased about being associated with these 'common' murderers! And he certainly doesn't appear to be their leader. Maybe he has been knocked down a peg or two. He may have met his match in Ospino...the seasoned assassin...who may even have more cockiness than JVDS and may now be ruling the roost!!
Maybe Joran was discouraged by the fact that a tv program was in there filming and taking pictures and he wasn't getting any money for it.

Here's another article with a take on the "festivities" that day....
http://peru21.pe/noticia/627726/asesinos-posan-sonrientes-penal
According to this article, it was a kind of "welcome party" for the new guy Trickett. It also says that Joran has gained a few kilos by not getting to go outside and eating burgers and pizza with his good friend Trujillo. The program also apparently filmed Joran playing poker with the fourth member of the group, the incarcerated former mayor/drug lord, Luis Valdez. Looking up pictures of Mr Valdez, I don't believe that is him in the picture. Something tells me that he is more likely the one running the show in that wing of the prison though. :waitasec:
MOO