The number of mass killings carried out in the United States in 2019 is one of the biggest ever.
A database compiled by The Associated Press, USA Today and Northeastern University shows that 2019 had the most mass killings since at least the 1970s.
In all, there were 41 mass killings, defined as when four or more people are killed excluding the perpetrator.
The killings included a trio of massacres in August in El Paso and Odessa, Texas, and Dayton, Ohio. More than 210 people were slain in mass killings in 2019.