Googling it, Sholam Weiss served 20+ years of a 825 year!! sentence for a fraud that sounds comparable to Holmes'. He died two months after release too from a stroke
He's still alive. What Weiss did was arguably a lot worse than what Holmes did. Him and his friends basically stole half a billion dollars from an insurance company in what was at the time one of the largest corporate frauds ever. I think the state government and some other insurance companies had to basically bail them out in order to make the customers whole. Then he went on the run for 3 years until he was caught. He was living a life of luxury etc all stuff Holmes was never accused of. The only thing that's similar between them is that the loss amount was high. Though he did actually pay most of the restitution he was ordered, whereas Holmes will probably end up paying nothing.