It is objectively false, but the spirit of your comment is grossly incorrect as well. He wasn't sentenced, but the "13 federal crimes" was a plea bargain offered by the prosecution. He killed himself beforehand.

FWIW, I actually have a close friend who ended up in North Kern for a couple years because of a plea deal fiasco. For most of us who never directly interact with the criminal courts, navigating such curcumstances is complelty bonkers and stressful, as I'm sure it was for Swartz.