R. Kelly’s federal trial on charges accusing him of making child pornography and rigging his 2008 child porn trial went to the jury on Tuesday after prosecutors and the defense wrapped up their cases.A day after prosecutors delivered their closing argument, Kelly’s lead attorney made hers. Standing at a podium a few feet in front of the jurors, Jennifer Bonjean noted that many key government witnesses, including some of the women who accused Kelly of sexually abusing them, testified with immunity to ensure they wouldn’t be …