(Green Bay, WI)  —  A New London man is going to federal prison for 17 years for supplying the drugs which caused the overdose death of a relative.  Twenty-seven-year-old Tyler Kuhnke made an appearance in a U-S federal courtroom in Green Bay Monday.  He traveled with Johnathon Ernst to Oshkosh to buy heroin.  That heroin was laced with fentanyl and Ernst died last June.  Kuhnke had given drugs to the same victim the year before, causing a non-fatal overdose.