There are yellow flags . . . but there are a lot of people who have yellow flags, and most of these people who have risk char­ac­ter­is­tics don’t actu­ally commit acts of vio­lence,” said James Alan Fox, a crim­i­nology and law pro­fessor at North­eastern University.

But, he added, “The problem is it’s vir­tu­ally impos­sible to dis­tin­guish between those who will, and those who won’t.”

Read the article at The Boston Globe →