Buffalo shooting pushes ‘great replacement theory’ into national spotlight

A mass shooting at a Buffalo grocery store that left 10 people dead has placed a national spotlight on a far-right conspiracy theory espoused by the suspected shooter.

The so-called “great replacement theory” asserts that there is an intentional effort to replace white Americans with people of color by encouraging immigration.

Payton Gendron, the 18-year-old suspect in Saturday’s attack, cited the theory in a manifesto he published online, while authorities say he intentionally planned the attack in a location with a significant Black population. Eleven of the 13 victims killed or...