Was a Police Report Altered to Convict a Man for Murder? Inside a Woman’s Quest to Free Her Brother; Massachusetts to Throw Out 21,000 Drug Convictions After State Chemist Tampers Evidence for 9 Years; Meet Timothy Taylor, Convicted on Drug Evidence Handled by a State Chemist Who Falsified Tests; White Nationalists, Neo-Nazis & Right-Wing Militia Members Clash with Antifa Protesters in Berkeley.