from a huge occupy wall street demonstration. you may remember police arresting 700 protestors after they shut down the brooklyn bridge back in october. now prosecutors are seeking deleted tweets from one of those protestors. but twitter will not give up the messages. and now it's taking court action to block the investigators. gregg jarrett live in our new york newsroom with more. >> reporter: the occupy wall street movement that turned rather ugly in that confrontation with new york police is now occupying a court of law over the very issue of who owns allegedly incriminating tweets. malcom harris was busted in october charged with disorderly conduct for his role in this occupy wall street march you see here which ended with about 700 protestors arrested. they stormed the brooklyn bridge. police say they warned them in advance, don't do it. now prosecutors have issued a subpoena to examine three months of harris' tweets in the belief they may continue duct his potential defense that police allowed protestors to walk on