It all leads to Shin
As Shiro watched, the armored man walked down the steps and stopped, then he began to stare at Shiro. After few minutes of awkward silence and observation, the armored man finally spoke "are you Shin" he asked, with a lot of seriousness in his reverberating voice. Obviously shiro would deny that he wasn't the one the armored man was looking for, but Victor said he may have heard the name before, the same name sounded familiar to Dave, all his attackers called him that name, and his curiosity had reached it's peak.
"So what if am?" Shiro answered in a taunting manner expecting a reply, but before he could crack a smile, Shiro found himself dodging a punch to the face and evading a few more attacks after that before creating a distance between him and his opponent. "Something seems of " Shiro said in his thought. He wasn't able to dodge when he was at full strength, but in a wounded state, he was evading well enough to not get hit.
Though the fact that one hit caused a lot of damage to Shiro was yet to have an explanation, the question everyone should be asking should be asking is "how did all this start?"