YouTube, which is owned by Google, has removed a number of videos deemed to be glorifying the Columbine High School killers, Eric Harris and Dylan Klebold.
Videos found on the site praised Harris and Klebold for carrying out the shooting in which 12 students and 1 teacher died and another 23 people were injured. Harris and Klebold subsequently shot themselves after the killing spree.
The killings, near Denver, Colorado, took place nine years ago. The offending videos were discovered following a BBC investigation. YouTube, where 13 hours worth of material is uploaded every hour, said that the volume of material prohibited pre-moderation and much reliance is placed on viewers flagging ‘offensive’ or other ‘unsuitable’ material.