I don’t think dramatising it serves any purpose at all. If a dramatic exploration of the make-up of wickedness is its aim, then I reckon it has a lot to live up to; for example David Mamet’s or Shakey’s excellent plays.
I think it’s a revolting idea for a play. I reckon for the genuinely interested that a documentary would be more fitting. However, I would defend the production team’s right to produce it anyway, in spite of my, or anyone else’s, misgivings.