Police group: Minn. governor ‘exploited what was already a horrible and tragic situation’

The officer who fatally shot Philando Castile, 32, has been charged with second-degree manslaughter. Here's what you need to know about the traffic stop gone wrong, which ended up live-streamed on Facebook. (Editor's note: This video has been updated.) (Video: Monica Akhtar, Jenny Starrs, Gillian Brockell/The Washington Post)

ST. PAUL, Minn. — Minnesota governor’s speech saying Philando Castile ended up dead during a traffic stop in part because he was black — and after five police officers were killed during a shooting attack in downtown Dallas — has made law enforcement officers across the country are distraught, angry and anxious, according to the head of a national police organization.