N.C. mayor seeks justice for former slaves

<p>Nearly 150 years ago, the North Carolina General Assembly funded a four-year rail project to open up western North Carolina to the rest of the state. Nearly 3,000 people helped work on it and almost all of them were former convicts and a large majority were former slaves.  </p> <p>As many as 300 may have died.  Now, a local mayor and researchers are not only looking for justice. They are looking for the spot where remains are buried. We are there for extraordinary access as decades of work led to incredibly anxious moments as a human remains detection dog sniffed the hillside.  </p> <p>Did the dog find anything?</p>