The killings followed a mass shooting at a supermarket in Boulder, Colorado, last week that left 10 dead. A week before that, six Asian women were among eight people killed at three Atlanta-area spas.
Investigators are trying to follow the purchase trail of the AR-15-type weapon used in the shooting. Pres. Biden ordered flags to return to half staff, just as his flag-lowering order had expired for the recent Atlanta shootings.