Jack broke his focus as he saw Shiro stray. He normally wouldn't care, but he felt he couldn't just let the guy go alone, so he began tailing him, staying 7 feet behind and moving at the same pace. He reached the gym, then said quietly to Shiro, "We've got hostiles... don't ask how many, I don't know how many eyes these things have..." Jack stood perfectly still, unsure of what to do himself.