NH - Sex offender moves into Derry

They say at the beginning of this video, that this man has a "long history," but then they go on to only mention one account of where he harmed a child. Doesn't sound like a long history to me.

Video Description:
Residents in Derry, New Hampshire are searching for answers.

They want to know how a convicted sex offender with a long history was able to move into their neighborhood.