The dude killed himself lol.

Prison workers are overworked, underpaid, and the vast majority of them don't give two shits about the people they're working with. They're trying to get in, do their time, and get out just like 90% of other people working an hourly job.

The dude was a rich multimillionaire who peddled children to the rich and wealthy in a cell with nothing, with the expectation of being killed by others at every corner, both from inmates knowing he was a pedo and the rich trying to silence him.

There may have been some greased palms regarding giving him the ability to kill himself, but even that's doubtful. Prison is an absolutely horrible, vile, shit hole for most everyone who steps foot on the property. The dude was seeing the grass greener on the other side through the loop of that noose.