Gun massacres killed 29 people over the weekend in El Paso and Dayton, Ohio, shaking the country and igniting a new debate over gun control.

The bloodshed in Dayton on Sunday was the 32nd mass killing by firearms in the United States this year. A mass killing is defined by the Justice Department as three or more killings in a single episode. There is no legal definition for the term “mass shooting,” despite its frequent use by gun control groups and the news media.

Here are some of the deadliest shootings in 2019. (Death tolls do not include the people who carried out the attacks.)