User blog comment:Kaestal/My theory of Savitar being the Arrowverse version of Cobalt Blue (And therefore Eddie Thawne)/@comment-27673963-20170414150925/@comment-27673963-20170415010241

Maybe all of the Flash's that viewed Nora's Death fought it out and one of those became Savitar maybe that would make sense, some wanted her to die, some tried to save, some did save her and some erased her saving. Kind of plausible all we need is Harrison Wells to explain in a nonsensical way and we will be fine.