Martyrdom of St Edmund depicted in a wall painting at St Mary's Church
http://www.paintedchurch.org/trostedm.htm
Troston from Google Earth
http://maps.google.co.uk/maps?q=Troston&hl=en&ll=52.319498,0.784664&spn=0.023242,0.0842&sll=52.367608,0.960767&sspn=0.005804,0.02105&vpsrc=6&gl=uk&t=h&z=14
http://en.wikipedia.org/wiki/Troston