Many of the videos included on this list have been studied for countless hours by world intellectuals, in an attempt to prevent similar occurrences.
Some will balk at the idea of creating this article, but it was completed with a strict selection process for each clip.
One night later, a three-minute Facebook video streamed by Dallas resident Michael Kevin Bautista documents a shooting in Dallas that left five police officers dead and an additional seven wounded.
(Earlier this week, cellphone videos also documented the police shooting death of Alton Sterling in Baton Rouge, Louisiana, although they were not streamed live.)The videos not only went viral, they underscored the visceral power of live social media videos that allow everyday citizens to be reporters of major events and everyone around the world witnesses to tragedies as they happen in real time."It's game-changing technology," Sree Sreenivasan, the former chief digital officer at New York's Metropolitan Museum of Art and Columbia University, told CBS News.
Analysts and researchers are speculating on what the next key disruptive technologies might be.