The headline "Scientist says he found definitive proof that God exists" is blatantly untrue.
Science doesn't do definitive proof.Science is about evidence that supports or falsifies hypotheses.
There seems to be little in the video that relates to "god" in any way other than the "mind of god" to mean the "way the universe works" as used by Hawking and others.
The quotes reproduced in the text do not come from the video and I can only find them articles with remarkably similar wording. One of which has another video (which also doesn't contain the quotes) in which he talks about god in the sense used by Einstein ("Spinoza's God").
http://tinyurl.com/jd2sl97In any event, there isn't even any evidence for String Theory yet (which is what he was talking about in the first video) let alone tachyons and whatever his latest idea about them is (not in either video, despite the quote).
Nothing in any of the videos or quotes refers to evidence of god. Michio Kaku may believe in some sort of god but there is no actual evidence (or even claims of evidence) in any of this. Even if the quotes are correct, they appear to be no more than personal opinions.