 Duvall's long-term partner confirmed she died in her sleep of complications from diabetes, adding, now she's free. Cooper Lawrence, CBS News. A lawsuit's been filed in the case of a Massachusetts teen who died after doing the Pocky One Chip Challenge. An autopsy shows he died from eating a large amount of chili pepper extract, but he also had a congenital heart defect. Pocky says the chip is clearly labeled. The product is not for children or anyone with health conditions.