WHO IS PETER?!?!?!

[jtg]

I've been speculating this for about a year now who he is frankly I've always thought he is Dempsey . But now that there is a grave in Shi No Numa (iTouch only) with Peter's Name written on it that idea is gone as well as the hanging guy since he is still there. But WHO IS HE NOW ?!?!?! yes; i get that Tank died in Der Riese ,And that this could in fact be his grave but that is unlikely and unrealisic considering his presense in SNN (again only matters in iTouch app) So can someone please help solve this madness and solve the puzzle [brains]

[Gun man]

I think that he is was a scientist who was trying to make a teleporter, and then tried to tame the zombies, but couldn't and died somehow?

[Where_is_Peter]

Peter is an American spy who infiltrated group 935 to get information on what they were testing, like the zombies, 115 and wonder weapons

[Triple Ex]

2 Years late, bro.