The synchronized footage, published online in January, was assembled by a mostly anonymous online group of sleuths called Osint HK, which has been keeping tabs on protesters and journalists’ often-violent encounters with police during the more than eight months of Hong Kong’s near-daily anti-government, pro-democracy protests. Osint HK has spent hours each day scouring social networks for videos and other media to document police misconduct across Hong Kong.

The protests are still happening, but they’ve slowed due to fears over the coronavirus, which has been spreading from China across the globe. So Osint HK more recently has begun focusing its efforts on educating the public about the virus.

“People are confused, and they don’t know where to turn,” says Trey Menefee, the founder and public face of Osint HK. “We are trying to be a trusted source of information, cutting through the fog to find out what did or didn’t happen.”