More “stranger danger” After terrorist and mass-casualty attacks like the El Paso Walmart mass shooting (target: Latino immigrants), the Tree of Life shootings in Pittsburgh (target: Jews), the Charleston and Buffalo shootings (target: Blacks), and others, police investigate how the killers got radicalized. What made them snap? Except lately authorities simply document common features instead. ABC News from January: A toxic brew of ideological extremism, blended with rage, anger and violent tendencies is making it increasingly difficult for authorities to identify motivations behind mass casualty attacks in America, according to a new assessment by the Department of Homeland Security. The confidential analysis, distributed to law enforcement on Jan. 10 and obtained by ABC News, describes the growing challenge posed by perpetrators who “espoused and engaged with an array of narratives,” often online, “likely fueling their mobilization to violence.” Those attackers’ range of beliefs made it easier to escape the longstanding templates law enforcement uses to catch would-be threats – and made it harder for police to intervene or secure potential targets, the analysis found. “Since 2018, we have observed mass casualty attacks in which the perpetrators held multiple grievances, challenging our ability to identify a primary motive,” the bulletin said. Is it really that hard? After the Jan. 6 insurrection, multiple convicts testified they carried out the assault at Donald Trump’s direction. This is from ABC News from May 2020, prior to the Jan. 6 attack: President Donald Trump has repeatedly distanced himself from acts of violence in communities across America, dismissing critics who…