The only thing that COULD make sense is that OP is referencing household income and the article is reporting average American. I could see some mental gymnastics to get a household average of 101915 with some data points that are missing when the average household consists of 90% 2 adults. But yea, you are correct I didn’t see the $101,915 mentioned either.
“It was not clear if they had any personal enemies” They had their throat’s slit…that’s pretty personal.