Mass Casualty Incidents
The Mass Casualty Incidents topic page provides news, videos and expert columns about dealing with large-scale incidents including terrorist attacks, dirty bombs, natural disasters and more.
Why technology is the key to avoiding the next 9/11 and MCI preparedness
How can we avoid the most common planning errors in anticipation of the unthinkable?
Six steps to balancing efficiency and safety when multiple officers converge on a scene
A 17-year-old has been arrested in the shooting that killed one and left 13 wounded
Police said the gunman shot a grandmother and her grandson before killing himself
An investigation found that DeWayne Craddock “struggled with how he perceived his own work performance and how others at work viewed him”
The video shows officers bursting through a set of double doors, where they find the shooter
Three people stepped out of an SUV with rifles and handguns and began shooting into the crowd outside the concert hall, said Miami-Dade police
A coworker also said that the gunman had worked regularly with the victims
“I never believed him, and it never happened. Until now,” said the man’s ex-wife
Officials said the suspect, an employee at the rail yard, had also died
Police said no arrests were immediately made
Police said the gunfire stemmed from two men who got into an argument near a nightclub
“I just slowly pulled the gun out of her hand,” the teacher said in a new interview. “She didn’t give it to me, but she didn’t fight”
The Averted School Violence database aims to help law enforcement learn how school attacks are planned, discovered and thwarted
Chief Col. Hugh T. Clements said it involved an “ongoing feud” involving two groups known to authorities
The decisions to seek the death penalty and a sentencing enhancement under Georgia’s hate crime law “send a message that everyone within this community is valued,” said the Fulton County District Attorney
Police identified the shooter as the boyfriend of a female victim at the party attended by friends, family and children
Investigators believe an argument escalated and resulted in multiple shooters
“My heart breaks for the families who have lost someone they love,” Colorado Springs Police Chief Vince Niski said
All “red flag” cases will now go straight to the judge instead of through the prosecutor’s office
The victims — two students and a custodian — are expected to survive
“Officer Steidell’s shots were the last ones fired by anyone inside the King Soopers,” the report reads
The victims’ injuries were not believed to be life-threatening, the sheriff said
Data shows there were two public mass shootings in 2020. This year there have been at least 11 so far
Investigators believe the gunman was seeking a specific person he was angry at, police said
A civil rights group wants to know if the gunman who killed eight people last week — four of them Sikhs — had ties to hate groups
Authorities said they didn’t seek a hearing because they didn’t have enough time to demonstrate the suspect’s inclination toward suicidal thoughts
Police said the suspect was arrested without incident about 7:30 a.m. in an Austin suburb
Some questioned if Indiana’s red flag laws were working, given that police had previously seized a firearm from the gunman
The FBI said it had previously questioned the gunman, a 19-year-old former employee
Police drone technology has a staggering amount of applications. Here’s a roundup of UAS footage that captures how drones help law enforcement
Officer Adam Willson was shot in the leg when a student opened fire on officers, police said
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