Board Thread:The Flash discussions/@comment-9346948-20160420004341/@comment-28166566-20160421094131

he traveled back in time so by killing his past self in the present he becomes his present self by becoming a timeline remnant like past eobard. but we dont know how many times he traveled back, for all we know the man in the iron mask is zooms original past past self, who has either repented and whants to stop his future self or get vengeance against himself.