KJ Biermann, 15, too immature to face adult charges — and 25-year prison sentence without parole — for sodomy, sexual battery charges

Kim Zolciak’s 15-year-old son, Kroy “KJ” Biermann Jr., is facing at least 25 years in prison without parole if convicted as an adult on the aggravated charges against him, according to a new court filing. “The aggravated charges carry a mandatory minimum sentence of 25 years in prison, up to life,” KJ’s attorney, Jason Sheffield, wrote in the Sept. 8 filing exclusively obtained by Page Six. Sheffield said the sentencing court “cannot probate any portion of the 25 years” and that KJ “would not be eligible for parole.” “He would have to serve every day of each 25-year sentence, if run consecutively,” the attorney added. Sheffield discussed…