UPDATE 1-R.J. O'Brien says cleared trades for UK trader charged in 'flash crash'
April 23, 2015 at 14:20 PM EDT
CHICAGO, April 23 (Reuters) - Futures brokerage R.J. O'Brien cleared trades recently for a British man accused of market manipulation that authorities say contributed to the May 2010 Wall Street "flash crash," a company spokeswoman said on Thursday.
