Weve been here before.

Right here, at this very specific moment of anguish.

Each time, its as though the world freezes and a familiar jolt zips through our bodies.

Our vision blurs.

Panicked, we look around to see if anyone else feels what we are feeling, to see if anyone else is in the grip of the same dismay.

On June 20, two Seattle police officers shot and killed Charleena Lyles, a 30-year-old pregnant mother of three. The following day, the former Milwaukee police officer who shot and killed 23-year-old Sylville Smith in 2016 was found not guilty of reckless murder . On June 23, a second mistrial was declared for a former University of Cincinnati police officer charged with murder and voluntary manslaughter for fatally shooting 47-year-old Sam DuBose. All of this happened within a week of a court finding Jeronimo Yanez, the former Minnesota police officer who shot and killed Philando Castile last summer, not guilty of second-degree manslaughter and endangering safety by discharging a firearm .

It seemed like there was barely time to process one of these events, to come to terms with the anger and the fear and the grief, before the next wave hit.

That, too, felt familiar.

Last summer, there was another head-spinning few days when two police officers shot and killed Alton Sterling, 37, in Louisiana. One day later and a thousand miles to the north, Castile was killed. In both cases, there was graphic video.