User blog comment:Kaestal/My theory of Savitar being the Arrowverse version of Cobalt Blue (And therefore Eddie Thawne)/@comment-24329997-20170415033804/@comment-27700324-20170415145530

When he was sent in the Speed Force he became insane, however he was set on killing Iris and himself from the past much earlier than that. It just makes no sense that he did that when he was sane.