Add Yahoo as a preferred source to see more of our stories on Google. A triple killer had violently assaulted two of his colleagues weeks before he killed three people in spate of attacks in Nottingham, a public inquiry has heard.

Add Yahoo as a preferred source to see more of our stories on Google. The public inquiry into the Nottingham attacks will be a "test of whether this country is prepared to confront failure and fix it", the victims' families have said.