School shootings in the US: Fast facts | CNN

U.S. tops 500 mass shootings in 2023 (axios.com)

More Than 600 Killed In U.S. Mass Shootings This Year—Highest In Years (forbes.com)

These are the people who died in the mass shootings in Lewiston, Maine – NBC Boston

Maine mass shooting suspect Robert Card found dead after two-day manhunt: sources (nypost.com)

Maine killer Robert Card found at recycling center, left note to loved one (bostonherald.com)