A British designer has created a unique life-saving evacuation chute which can be adapted to any building - and "could have emptied Grenfell Tower in 20 minutes". <br /><br />Eric Hooper, 72, said watching live coverage of the devastating fire that killed at least 80 people left him "frustrated as hell". <br /><br />He said fitting the escape tube on the 21-floor residential block could have saved countless lives when it was ravaged by the inferno in June.
