Arthur Baines signs "RIP Big Dogg" on a folding table that Alton Sterling used to sell homemade music CDs outside the convenience store, Wednesday, July 6, 2016, in Baton Rouge, La.

Man Who Filmed Video Of Alton Sterling Killing Arrested

Though filming police is not a crime provided you do not interfere and maintain a safe distance from whatever is occurring, those who do film — and, apparently, those who post such video to social media — have faced backlash from authorities before.