captain Yitzchok reportedly died while swimming in Hampstead . He was seen in difficulty in water at dawn and body washed at 6 pm . Eyewitnesses and emergency services personnel watched as they dived in . Family pay tribute to ' wonderful ' and ' friendly ' teenager .
Moses Yitzchok Greenfeld died while swimming in Hampstead . He was seen in difficulty in water at 5.30pm and body recovered at 11pm . Eyewitnesses claim emergency services crew watched as boys dived in . Family pay tribute to 'wonderful ' and 'friendly ' teenager .