'One of the most indelible images of the Occupy movement to date is that of Marine veteran Scott Olsen being carried away from a skirmish line of riot police at 14th Street and Broadway on October 25 in Oakland. Stunned and bleeding from an ugly gash on his forehead, the 24-year-old Wisconsin native had been struck in the head by an unknown projectile. [...] An extensive review of video footage and Oakland Police Department records by this reporter indicates that Robert Roche, an acting sergeant in the Oakland Police Department and member of OPD’s 'Tango Teams,' threw the flash-bang at Olsen and his rescuers. It’s also not the first time that Roche’s actions have come under scrutiny. Police records show that Roche had previously killed three people in the line of duty."