Where prisoner requested compassionate release from Bureau of Prisons on one ground and then pursued new ground in motion before district court, prisoner had not properly exhausted remedies.The 7th U.S. Circuit Court of Appeals affirmed a decision by Chief Judge Sara Darrow, Central District of Illinois. Cory Williams began serving an 18-year sentence in 2013 for three counts of robbery and one count of brandishing a firearm. Less than a year after sentencing, Williams moved under 28 U.S.C. Sec. 2255 to vacate his sentence …