Breck Bednar was murdered in 2014, by someone he thought was a friend.
Now a new play, written by Mark Wheeller and using the words of his friends and family, tells the story of how the teenager was groomed online.
His mother Lorin LaFave, watching from the audience, hopes that it will stop other teenagers falling victim to the same threat.
If you’ve been affected by the issues raised in this video help and support is available via the BBC Action Line.