From [HERE] In the wake of Thursday's chaotic Art Walk in Downtown Los Angeles, one Angeleno has launched a Change.org petition asking officials to investigate the Los Angeles Police Department's use of force during the event. Directed at Los Angeles Mayor Antonio Villaraigosa, California Governor Jerry Brown and U.S. Attorney General Eric Holder, the human rights petition says the "LAPD used excessive force on the citizens of Los Angeles creating an unsafe environment and violating the civil rights of the citizens they are sworn to protect resulting in a tactical alert being issued for the downtown area" during the monthly Art Walk. Occupy L.A. planned and executed their "Chalk Walk" Thursday night, where activists protested via sidewalk chalk messaging and drawing in various parts of Downtown, including in front of City Hall LAPD Headquarters.