Iowa officer disciplined after yanking suspect’s dreadlocks

Black Hawk County Sheriff's Office via APhis April 19, 2016, photo provided by the Black Hawk County Sheriff’s Office in Waterloo, Iowa, shows Montavis Keller. Police video obtained by The Associated Press on Aug. 30, 2016, shows a police officer yanking on Keller’s dreadlocks and hitting him on the back of the head after Keller led officers on a dangerous high-speed chase in Waterloo.WATERLOO, Iowa (AP) — An angry white police officer repeatedly yanked on the dreadlocks of a h