Hate-crime perpetrators often see themselves as heroes, researchers say

In Kansas, a middle-aged man yells, "Get out of my country!" and shoots dead an Indian-born immigrant. In New York, another man, convinced the white race is being destroyed by interracial marriage, allegedly finds an African-American homeless man and stabs him to death. And on Saturday, in Pittsburgh, police say a man entered a synagogue with an AR-15 rifle, murdered 11 people, then explained his actions to a SWAT officer this way: "They're committing genocide to my people. I just want to kill J