Footage has been released showing the moment an Uber driver and Afghan refugee was tasered and detained after a dog walker was killed in an alleged “vicious and ferocious” knife attack. Dawood Safi, 28, allegedly attacked 49-year-old Wayne Broadhurst during what was reported to be a “random stabbing rampage” in Midhurst Gardens, Uxbridge, on October 27 last year. Mr Broadhurst sustained 14 stab wounds across his head, neck, chest and back, with a witness describing the violence as a “butchering”. Safi was reportedly experiencing psychosis at the time, while another witness recalled that he appeared “like he was possessed” during the attack. He subsequently admitted manslaughter in connection with Mr Broadhurst’s death and was later convicted of attempting to murder his landlord. Newly released police bodycam video shows officers pulling up at the scene before getting out of their vehicle and moving towards Safi, who remains armed with the knife. Police repeatedly order him to “drop the knife” and “get on the floor”, but he fails to comply and instead retreats away from the approaching …