Cro-Mags founder Harley Flanagan has announced two new releases including the “Cro-Mags Demos” and the “Hard Core Dr. Know” EP. “Hard Core Dr. Know” is available now and proceeds will go towards Bad Brains’ Dr. Know to help him out with medical expenses from his 2015 health issues. The “Cro-Mags Demos” will be available on…