One evening in early June, a week after 19 students and two teachers were shot and killed at Robb Elementary School in Uvalde, Texas, extremism researcher Kesa White started seeing media reports of another mass shooting, this time at a medical center in Tulsa, Oklahoma.
In turn, she picked up each of the three phones she uses for research and got to work, scrolling fast. Apps. News sites. Twitter, and other more obscure social media platforms. In the minutes after a shooting, she would need to learn as much as she could.