https://www.vox.com/recode/2020/6/12/21284113/police-protests-surveillance-instagram-washington-dc

Armed with smartphones, the public is holding law enforcement to account.

The way the Buffalo Police Department tells it, 75-year-old Martin Gugino “was injured when he tripped and fell” during a June 4 protest. This statement was quickly contradicted when footage from a nearby journalist’s phone showed that Gugino fell after two police officers pushed him. The man’s head hit the ground with a sickening crack and blood poured out of his ear. Most of the officers then walked on by him. The video swiftly went viral.