Detailed text transcripts for TV channel - CNN - 20181008:06:55:00
The iconic image known as girl with the balloon self-dee instructs. the artist delighting in the moment, in real time on his instagram account. writing, going, going, gone. a shredder built into the frame rips the piece into strips at sotheby's auction house in london. banksy said he added the shredder to the picture years ago just in case it was ever auctioned off. it's not clear how the shredder was activated or how this will affect the art's value. could it be worth more now? >> well, that will be sad if it is. >> reporter: will joins the author of banksy says the artist had a clear messa...