Shkreli's resignation comes after his arrest for securities fraud yesterday. It turns out that the management at his last drug company, Retrophin, say Shkreli misappropriated money to pay off his hedge fund's failed investments. Shkreli and his alleged accomplice, Evan L. Greebel (a lawyer for Retrophin), both pleaded not guilty.

Shkreli is also the CEO of KaloBios Pharmaceuticals; he was appointed in November, which is after his price gouging at Turing came to light but before anyone knew he'd purchased the only copy of the Wu Tang Clan's Once Upon a Time in Shaolin for $2 million. (Now that he's stepped down from Turing, perhaps he'll finally get around to listening to it.) Shkreli ran the same playbook at KaloBios as at Turing, acquiring the license for a standard treatment for a parasitic infection called Chagas disease. The company then announced it planned "to increase the cost from a couple hundred dollars for two months to a pricing structure like that for hepatitis-C drugs, which can run to nearly $100,000 for 12 weeks," according to Bloomberg. A call to Ed Painter, the communications officer at KaloBios, wasn't picked up, and it was impossible to leave a voicemail — the mailbox was full. So it's hard to say what Shkreli's future at KaloBios looks like.