Two 14-year-old boys have been arrested after a 45-year-old man was stabbed to death in east London. James Markham was attacked after confronting a group of youths in Chingford on Monday evening, the Metropolitan Police has said. Emergency services were called to the scene in Churchill Terrace at 6:20 p.m. and found Markham, who had been stabbed. Despite the efforts of the emergency services and members of the public, he was pronounced dead at the scene. Reports have suggested Markham was trying to defend his daughter from a group of youths before his death. A post-mortem examination found he died of a stab wound to the lung. His next of kin are being supported by specialist officers. Police said a 14-year-old has been arrested on suspicion of murder while another boy, also 14, was arrested on suspicion of conspiracy to murder. Both are in custody at an east London police …