Eighteen months after his arrest during a prostitution sting in Portsmouth, a 28-year-old man has pleaded guilty to the human trafficking of four women by controlling their access to heroin and creating a situation they couldn't escape from. Subscribe to WMUR on YouTube now: http://bit.ly/1lOjX9C Get more Manchester news: http://www.wmur.com/ Like us: / wmur9 Follow us: / wmur9 Google+: http://plus.google.com/+wmur