Shooting

Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri...Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri August 18, 2014. Police fired tear gas and stun grenades at protesters on Monday after days of unrest sparked by the fatal shooting of unarmed black teenager Michael Brown by a white policeman. REUTERS/Joshua Lott (UNITED STATES - Tags: CRIME LAW CIVIL UNREST)

Joshua Lott/Reuters

Police fired tear gas and stun grenades at protesters on Monday in Ferguson, Missouri, after days of unrest sparked by the fatal shooting of unarmed black teenager Michael Brown by a white policeman Read more

Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri...Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri August 18, 2014. Police fired tear gas and stun grenades at protesters on Monday after days of unrest sparked by the fatal shooting of unarmed black teenager Michael Brown by a white policeman. REUTERS/Joshua Lott (UNITED STATES - Tags: CRIME LAW CIVIL UNREST)

Joshua Lott/Reuters

Police officers aim their weapons at demonstrators, having fired tear gas and stun grenades at protesters in Ferguson, Missouri. Read more

Emergency Response team members take cover behind vehicles in Moncton

Ron Ward/Moncton Times & Transcript/Reuters

Emergency response team members take cover behind vehicles in Moncton, New Brunswick, Canada. Three police officers were shot dead and two more were wounded, police said as they conducted a manhunt for a man carrying a rifle and wearing camouflage clothes

Anti-government protesters look at bloodstained floor of the bus they were traveling after an attack by suspected gunmen while on their way back from a protest in Bangkok, Thailand Tuesday, April 1, 2014. Gunmen have fired on a convoy of anti-government protesters in Thailand's capital, and four people have been wounded. (AP Photo)

AP

Anti-government protesters on their blood-stained bus that was part of a convoy attacked by gunmen on its way back from a protest in Bangkok, Thailand on Tuesday. Four people were wounded.

Troops under Russian command fire weapons into the air and scream orders to turn back at an approaching group of over 100 hundred unarmed Ukrainian troops at the Belbek airbase, which the Russian troops are occcupying, in Crimea, Ukraine. The Ukrainians are stationed at their garrison nearby, and after spending a tense night anticipating a Russian attack following the expiration of a Russian deadline to surrender, their commander Colonel Yuli Mamchor announced his bold plan this morning to retake the airfield by confronting the Russian-lead soldiers unarmed. The Russian-lead troops fired their weapons into the air but then granted Mamchor the beginning of negotiations with their commander.

Sean Gallup/Getty Images

Troops under Russian command fire weapons into the air and shout orders to turn back at an approaching group of more than 100 unarmed Ukrainian troops at the Belbek airbase, which the Russian troops are occupying, in Crimea, Ukraine

Co-workers and relatives of 34 miners sh...Co-workers and relatives of 34 miners shot dead by South African police during a violent wage strike sing and dance as they gather on August 16, 2013 in Marikana to mark the first anniversary of their deaths. Today marks a year after police opened fire on thousands of strikers at platinum producer Lonmin's mine, northwest of Johannesburg, which killed 34 and injured 78 people. The August shooting was described as the worst police brutality since the end of apartheid two decades ago. Three days ago, the firm has recognised radical labour group AMCU, which led the wage strike, in an attempt to ease simmering inter-union tensions on the platinum belt. AFP PHOTO / STEPHANE DE SAKUTINSTEPHANE DE SAKUTIN/AFP/Getty Images

Stephane De Sakutin/Getty

Co-workers and relatives of 34 miners shot dead by South African police during a violent wage strike gather on Friday in Marikana to mark the first anniversary of the deaths. Police opened fire on thousands of strikers at platinum producer Lonmin’s mine, northwest of Johannesburg. Read more

Protesters who support former Egyptian President Mohamed Mursi carry an injured man during clashes outside the Republican Guard building in Cairo...ATTENTION EDITORS - VISUAL COVERAGE OF SCENES OF INJURY OR DEATH    Protesters who support former Egyptian President Mohamed Mursi carry an injured man during clashes outside the Republican Guard building in Cairo July 5, 2013. At least three demonstrators were shot dead outside the Republican Guard barracks in Cairo where deposed Islamist President Mohamed Mursi is being held, security sources said.

Louafi Larbi/Reuters

Supporters of the former Egyptian President Mohamed Mursi carry an injured man during clashes outside the Republican Guard barracks in Cairo, Egypt. At least three demonstrators were shot dead outside the building, where the deposed Mr Mursi is being held, security sources said.

A man believed to be the assailant lies on the ground detained by police after a shootout outside the Chigi Premier's office, in Rome, Sunday, April 28, 2013. Reports say two paramilitary police officers were shot and wounded outside the Italian premier's office as the new leader Enrico Letta was sworn in about a kilometer (half-mile) away. It was unclear if there was any connection between the events.

Mauro Scrobogna/AP

A man lies on the ground detained by police after a shootout outside the prime minister’s office at Palazzo Chigi, in Rome on Sunday. Reports say two paramilitary police officers were shot and wounded as new leader Enrico Letta was sworn in about 1km away. Read more

WATERTOWN, MA - APRIL 19:  Police with guns drawn search for a suspect on April 19, 2013 in Watertown, Massachusetts. Earlier, a Massachusetts Institute of Technology campus police officer was shot and killed late Thursday night at the school's campus in Cambridge. A short time later, police reported exchanging gunfire with alleged carjackers in Watertown, a city near Cambridge. It's not clear whether the shootings are related or whether either are related to the Boston Marathon bombing.

Mario Tama/Getty

Police with guns drawn on Friday search for a suspect in Watertown, Massachusetts. A Massachusetts Institute of Technology campus police officer was shot and killed late on Thursday night at the school’s campus in Cambridge. A short time later, police reported exchanging gunfire with alleged carjackers in Watertown, a city near Cambridge. Read more