Omar Mateen, 29, was born in New York to Afghan parents. Since September 2007 he had worked as a security guard for G4 Security in Florida. The large security contractor provides security personnel to guard building, among them federal buildings. He underwent background checks in both 2007 and 2013. In March, British born Islamic preacher Sheikh Farrokh Sekaleshfar gave a speech outside Orlando in which he called for the death of all homosexuals. “Death is the sentence. There’s nothing to be embarrassed about this. Death is the sentence,” he said.

Between 2008 and 2013, the FBI used a narrow definition of mass shootings – limiting the designation “mass shootings” to incidents in which an individual “kills four or more people in a single incident… typically in a single location.” In 2013 the FBI changed its definition, moving away from “mass shootings” to identifying an “active shooter” as “an individual actively engaged in killing or attempting to kill people in a confined and populated area.” The FBI designated the incidents listed below as mass-shooting incidents.

Omar Mir Seddique Mateen, a 29-year American citizen whose parents are from Afghanistan, entered a night club in Orlando, Florida, at about 2:00 a.m., armed with an AR-15 assault-rifle and a hand gun, and opened fire. He killed 50 people and injured 53 – the deadliest mass shooting in the history of the United States – before being killed by police officers who stormed the club. Until the shooting early Sunday, the most lethal mass shooting in the United States was the 2007 Virginia Tech rampage, in which 32 people were killed and 30 injured.

Ten large fan zones in the center of ten French cities, set up to allow more fans to watch the Euro 2016 soccer games on giant outdoor screens, are the focus of security concerns. The tournament, which starts in France on Friday, is expected to draw more than ten million spectators from all over the world. “It as if we have created ten open-air Bataclans and invited the jihadists to do their worst,” one French security source said, referring to the Paris concert hall where ninety people were killed by jihadists on 13 November.

Four people were killed and six injured yesterday in an attack by two armed terrorists near a shopping mall in the center of Tel Aviv. Of the six injured, one is in critical condition and four are in serious condition. The Sharona Mall is located within walking distance of the Kyria compound, the location of Israel’s Ministry of Defense and headquarters of the Israel Defense Force (IDF). The Israel government announced that 83,000 permits to West Bank residents to visit their relatives in Israel during the month of Ramadan have been suspended, and that permissions to residents of the Gaza Strip to pray in Al Aqsa have been revoked.

Three people were killed and six injured in an attack by two armed terrorists near a shopping mall in the center of Tel Aviv. Of the six injured, one is in critical condition and four are in serious condition. The Sharona Mall is located within walking distance of the Kyria compound, the location of Israel’s Ministry of Defense and headquarters of the Israel Defense Force (IDF).

Euro 2016 soccer tournament begins on Friday, and as part of the massive security operation undertaken to secure the ten millions spectators who will be watching the games from 10 June to 10 July, the French government has created a smartphone app designed to send warnings directly to people’s phones in the event of a bombing, shooting, or other disaster.

The last surviving search and rescue dog who worked at Ground Zero following the 9/11 terrorist attacks died on Monday. Bretagne, a 16-year-old golden retriever, was put down at Fairfield Animal Hospital in Cypress, Texas. As Bretagne slowly walked into the hospital, she was saluted by representatives of state agencies who came to pay their respects.

New research from START examines the link between hate crime (bias-motivated crime) and terrorism at the county level, focusing on far-right extremism in the United States and pulling data from the U.S. Extremist Crime Database (ECDB) and the Global Terrorism Database (GTD). Among other things, the research has found that counties experiencing increases in one type of bias-motivated or extremist violence are likely to see significant increases in other types of extremist activity.