Here's my theory. As we've seen, Hastings doesn't waste any panels. Everything is here to be crucial to the story, to be funny or to foreshadow. The one panel in this entire story that got me confused was this one: http://drmcninja.com/archives/comic/33p100/
. Why would the dino be up there hiding? Doc seems surprised he could be up there. It's not exactly a joke either so not there for comic relief. I think that doc IS the dino
. Doc found out what happened at this moment through Chuck, went back in time at some point, but did EVERYTHING he possibly could to not alter a thing and create a different branch in time (which this little incident almost ruined), i.e. the most NINJA thing to do EVER. And now that the loop has closed, he's finally free to break out of the elaborate costume/dead Dino (could be this guy's head and/or body http://drmcninja.com/archives/comic/21p105/
), and he's gonna have an epic final fight with Franz, fully healthy and pissed. Further evidence, here the dino's head is seen but no gunshots are coming from him: http://drmcninja.com/archives/comic/33p91/
. Again, it's slim but Hastings doesn't waste space. We'll see soon.
OHH and one more thing. I think when Doc takes off his mask, the face we'll see is