The question asked: “Is that true?”
I don’t believe it but does anyone have a verifiable answer to the question??
As with unemployment figures, the CPI, and global temperatures, they've changed the definition of what constitutes a mass shooting, so...which set of metrics for comparison do you want to go with? Apples to penguins, or vending machine gum to the mystical feeling one gets when walking in the woods of Germany?
You can play games with data to make the answer yes but that is like my saying that 100% of people will have homemade french onion soup tonight.
As long as I eliminate from the data set every one who does not live with me the statement is true.