That's because, apparently Peruvian prison life isn't all that it's cracked up to be.
If you can believe that.
Now, according to this article, van der Sloot would be living out his sentence at Lurigancho prison, which sounds lovely, according to this account:
"There are 35 guys in a room there," he says. "They don't have beds, they go to the bathroom on the floor and the showers run once a week for 15 minutes. Fifty percent of the inmates have AIDS or tuberculosis, and you can die from eating the food."
Right now, he's being held at Miguel Castro Castro Prison (so nice they named it twice!), and that he might be moved to Piedras Gordas maximum security prison, a prison that this article says doesn't normally take in new prisoners. I guess van der Sloot is an exception?
I'm going to be honest - being involved in a debate about which Peruvian prison to spend time in is not high on my Bucket List. None of this news can be good for Mr. van der Sloot. Of course, Mr. van der Sloot really doesn't deserve anything more than this, so...