Board Thread:Theories/@comment-25146351-20150802014113/@comment-24036697-20160407193740

Sookey5 wrote: maybe it's a burn. we get no indication that titan shifters can regenerate burns, only cuts or fatal injuries. True, but given some of the injuries we have seen the shifters recover from, it would stand to reason that a burn would be no different.

Perhaps his scar has something to do with what's in the basement? Hard to say at this point.