More info on this:
The guy with the whale tusk is a Polish immigrant who was working at Fishmongers' Hall, an exhibition space being used by Cambridge University for a conference about rehabilitating criminals -who decided it'd be a good idea to hold the conference at the site of a previous terrorist incident & invite along a convicted terrorist? He'd been let out of jail early. He was armed with a knife & a fake explosive vest, so presumably came prepared, rather than launching his attack on the spur of the moment. He killed a Cambridge student & a woman passer-by. I think they proved beyond any doubt that a cup of tea & a cuddle isn't going to work with these guys. Rehabilitation doesn't work. But then, one of the other men who tackled him, (the one armed with a fire extinguisher?), is a convicted murderer, also a guest at the conference.
Maybe the clever University types need to re-think their sociology teaching -& hold their conferences in a more secure environment.
According to the Radio 6 News, the terrorist's lawyer is blaming the prison service for not de-radicalising him & Jeremy Corbin is blaming the probation service.
Sorry -I'm trying not to rant