Toronto Internet Lawyer, Gil Zvulony recently spoke to the national media regarding the ability of YouTube to monitor its videos for threatening behaviour. The discussion arose out of a murderer’s apparent warnings and threats on YouTube prior to committing his crimes. Gil Zvulony’s positions was that YouTube should not be held responsible for matters that it is not aware of.
You can read the stories here:
http://www.cbc.ca/news/elliot-rodger-killings-show-difficulty-of-policing-youtube-1.2654778
http://www.huffingtonpost.ca/2014/05/27/elliot-rodger-youtube_n_5395933.html