Two officers shot in Ferguson

Demonstrators protest in front of the police station in Ferguson, Mo. (Scott Olson / Getty Images)

Demonstrators hold a prayer service near the police station in Ferguson, Mo. Prayers were said for both demonstrators and police at the service. (Scott Olson / Getty Images)

Officers stand watch outside the Ferguson, Mo., Police Department during protests. (MICHAEL B. THOMAS / AFP/Getty Images)

St. Louis County police officers stand in riot gear as protesters demonstrate outside the Ferguson, Mo., Police Department. (MICHAEL B. THOMAS / AFP/Getty Images)

An agent with the federal Department of Alcohol, Tobacco, Firearms and Explosives arrives to investigate the scene where two police officers were shot outside the Ferguson, Mo., Police Department. (Michael B. Thomas / Getty Images)

St. Louis County Police Chief Jon Belmar speaks to the media during a press conference to discuss the overnight shooting of two police officers outside the Ferguson Police Department who were rushed to a local hospital. (MICHAEL B. THOMAS / AFP/Getty Images)

Law enforcement officials secure the crime scene and continue to search for evidence outside the police station after two officers were shot and wounded during last night’s protest in Ferguson, Missouri. (Scott Olson / Getty Images)

Authorities investigate the scene outside the Ferguson Police Department where two police officers were shot and wounded on March 12. (Michael B. Thomas / Getty Images)

Police shine a light on a helmet as they investigate the scene where two police officers were shot outside the Ferguson Police Department early on March 12. (Jeff Roberson / Associated Press)

Police canvass the area as they investigate the scene where two police officers were shot outside the Ferguson Police Department early on March 12. (Jeff Roberson / Associated Press)

Police mobilize in the parking lot of the Ferguson Police Department headquarters after two officers were shot early on March 12. (Laurie Skrivan / Associated Press)