The 19-year-old man was arrested on August 6 at a London police station on suspicion of attempted murder. Three other men, aged 19, 51 and 59, who were arrested on August 5, have also been bailed. The incident occurred on March 22 in Mortimer Road, Moreton Hall, when a man in his 40s sustained life-threatening stab wounds. Sebastian Smith, of Radford Road, Lewisham, was charged with attempted murder in April following police inquiries. Four other males, aged 24, 26, 47 and 28, have also been arrested on suspicion of attempted murder and released on bail as investigations continue.