Actually, it looks like Arthur does get “slained” at the end of movement 4 after the mello lick in minor. Would the guard member that does the slaying happen to be their introduction of the son?
If you look at the finals video of Crown's 2013 drum break you'll see the judge almost get run over by the guard. But in some cases they can be helpful, look at last years situation when the drum judge picked up the snare and ran all the way to the back to give it to the Crown member.
I just saw on Crown's Facebook, via the picture with the green silks, that the green silks represent the forest that Dante first travels through before he meets Virgil.
2003 - Blue Devils
2004 - Blue Devils
2005 - The Cadets
2006 - Blue Devils
2007- The Cavaliers
2008 - Blue Devils
2009 - Blue Devils
2010 - Blue Devils
2011 - Blue Devils
2012 - Blue Devils
2013 - Blue Devils
2014 - Blue Devils