The police chief of Omaha, Nebraska, is promising an investigation after video captured police throwing a man to the street even though he did not appear to be resisting. On the recording, officers then appear to punch Octavious Johnson repeatedly while he is on the ground. Johnson and his two brothers were arrested during the incident last week. Their aunt said officers chased one of them into the house to try to the seize the video documenting the apparent assault. Three officers have been reassigned while the probe is underway.