$7.1 Billion Fraud - Could Be The Largest Trading Fraud Ever
nytimes.com
nytimes.com
He was described as "a fragile individual, with no particular genius who was facing family problems." That describes the majority of people I know! Somehow though he weaseled his way into the center of operations.
The big question is was it incompetence (i.e. doubling down to cover earlier losses) or was it sabotage. The press says it was not for personal gain. He made a salary under 150K USD.