Matthew Knowles BLASTS Jay Z After Hidden Son CONFIRMS DNA Results <br /><br />Finally, has Rymir Satterwaithe gotten Jay Z to admit that he’s actually his biological father? Because after 10 years of Jay Z twisting and turning every which way just to avoid taking a paternity test, the court finally put its foot down and ordered Jay Z to get those DNA tests done once and for all. <br /><br />