Three-quarters of U.S. children and teenagers killed in mass shootings over the past decade were victims of domestic violence and generally died in their homes, according to a study released on Thursday by the gun control group Everytown.

While the specter of school shootings looms darkly in the minds of American parents who remember massacres in Newtown, Connecticut; Parkland, Florida, and around the country, the group's review of shootings from 2009 through 2018 found that far more children were killed in their own homes.

"These are not random acts of violence, yet people have the perception that the killings come out of nowhere," said Sarah Burd-Sharps, Everytown's research director. "That is simply not the truth."