I shot a mature south Texas buck at 7:00 a.m. Tuesday with a 27" Beman Realtree H.I.T. arrow tipped with a 100 grain Hellrazor. It was a 20 yd. shot perfectly broadside from a brush blind. The arrow entered mid body elevation and windage was back around the liver area or even further back in front of the ham area. The buck kicked his back legs extremely high and almost fell when they came back to the ground. He ran like a bat out of hell crashing through the brush for 10 or 15 seconds and then I heard nothing but silence. I glassed for my arrow and only found the nock/fletching(2" blazers) end broken off from the rest of the arrow about 2 inches from the bottom of the vanes. This part had evidence of blood but I do not understand how this was broken by the deer. We all know how difficult it would be to break a carbon arrow at this point. I began looking for blood after a 3 hour wait and did not find a drop of blood. I have been looking ever since. I sure could use some experienced analysis and opinions regarding this situation......