The result of this revelation means that this prosecutor has not done due diligence on the first step in a prosecution; verify the facts.
It would appear that his manner of response simply accepted, at face value, whatever the accuser said.
How can the people of the jurisdiction he works for get him out of office? As soon as they do, they need to look into the rest of the prosecutions he has handled.
According to K C Johnson, North Carolina has no legal means to rein in a rogue DA except by him losing an election. (In other states the Governor, the Attorney General or sometimes the Supreme Court can do it.) If the electorate approves of the rogue DA then he's in and there's nothing anyone in government can do about it.
There's a prior thread here
http://www.freerepublic.com/focus/f-chat/1726850/posts?page=118#118
And the one before that is full of good stuff too
http://www.freerepublic.com/focus/chat/1721830/posts?page=682