Chicago police investigate the scene of a mass shooting where more then a dozen people were shot in the Gresham neighborhood, of Chicago.

Chicago police investigate the scene of a mass shooting where more then a dozen people were shot in the Gresham neighborhood, of Chicago.

People walk past the drug rehabilitation center that was attacked in Irapuato, Mexico. Gunmen burst into the center and opened fire Wednesday, killing 24 people and wounding seven,...

An Afghan security officer carries a baby after gunmen attacked a maternity hospital, in Kabul, Afghanistan. Gunmen stormed the hospital in the western part of Kabul on Tuesday, se...

A body of a militant killed during an attack lies on the ground at a maternity hospital in Kabul, Afghanistan. Militants stormed a maternity hospital in the western part of Kabul o...

A man cries after an attack in maternity hospital, in Kabul, Afghanistan. Gunmen stormed the hospital in the western part of Kabul on Tuesday, setting off a shootout with the polic...

Royal Canadian Mounted Police officers prepare to take a suspect at a gas station in Enfield, Nova Scotia. Canadian police say multiple people are dead plus the suspect after a sho...

Royal Canadian Mounted Police officers prepare to take a suspect into custody at a gas station in Enfield, Nova Scotia. Canadian police arrested a suspect in an active shooter inv...

An Afghan Sikh woman wounded in a gunmen attack lies in a hospital in Kabul, Afghanistan. Gunmen stormed a religious gathering of Afghanistan's minority Sikhs in their place of wor...

Family members cry after an attack in Kabul, Afghanistan. Gunmen stormed a religious gathering of Afghanistan's minority Sikhs in their place of worship in the heart of the Afghan ...

Family members cry after an attack in Kabul, Afghanistan. Gunmen stormed a religious gathering of Afghanistan's minority Sikhs in their place of worship in the heart of the Afghan ...

Forensics investigate at the scene after a shooting in central Hanau, Germany. Eight people were killed in shootings in the German city of Hanau on Wednesday evening, authorities s...

In this photo provide by Channel 3 Eyewitness News (WFSB-TV), a view of the scene of a shooting at the Majestic Lounge, in Hartford, Connecticut. Multiple people were shot at a Con...

Law enforcement officials block off a Walmart store in Forrest City, Arkansas. Police say at least three people have been shot at the store.

Members of the Thai special forces carry the coffin a fellow officer killed in a mass shooting, at a military airport in Nakhon Ratchasima, Thailand. Thai officials said the attack...

A nurse monitors an emergency ward with victims of a mass shooting in Korat, Nakhon Ratchasima, Thailand. Thai officials say a soldier who went on a shooting rampage and killed num...

People comfort the relative of a victim in the mass shooting in Korat, Nakhon Ratchasima, Thailand. Thai officials say a soldier who went on a shooting rampage and killed numerous ...

A relative of a missing person waits outside the emergency room where victims of the mass shooting are being treated in Korat, Nakhon Ratchasima, Thailand. Thai officials say a sol...

Armed commando soldiers carry a person out of Terminal 21 Korat mall in Nakhon Ratchasima, Thailand. A gunman described as a soldier angry over a financial dispute killed a few peo...

A group of armed commando soldiers are seen outside Terminal 21 Korat mall, in Nakhon Ratchasima, Thailand. A soldier who holed up in a popular shopping mall in northeastern Thaila...