I saw him again today! I took LOTS of pictures and after seeing him today I am pretty sure he has GSD in him somewhere. apperntly he was NOT guess rottie mix because of his markings, its turns out he actually DOES have Rottie in him, in fact he was abandened in an apartment with his parents, a Rottie and a Heeler, I garentee however that at least one of those dogs was mixed considering Guinness is not black and tan, but Sable lol. I will post the pics either tonight(if I can get on the computer) or tomorow morning.