The victims of an alleged cryptocurrency investment fraud are suing JPMorgan, Bank of America and Coinbase, alleging the firms should have spotted evidence of an ongoing Ponzi scheme.

Last week, Dave and Brigitte Emery, along with Kamran Soleimani, filed a class action suit on behalf of the alleged victims of Christopher Delgado. The lawsuit comes months after federal authorities arrested Delgado in Florida, charging him with wire fraud and money laundering in a $328 million scheme run through his firm, Goliath Ventures. 

In the complaint, the Emerys and Soleimani also sued the law firm Alston & Bird, alleging that the attorneys prepared documents arguing that Goliath Ventures’ business model didn’t fall under securities…