For years, Manchester synagogue attacker Jihad Al-Shamie lay in wait as he viewed terrorist material online, biding his time before he decided to strike. Earlier this month, on Yom Kippur, the holiest day in the year for Jews, the 35-year-old attacked Jewish worshippers at Heaton Park Hebrew Congregation Synagogue. He stabbed one person to death, and when armed police shot at Al-Shamie, a worshipper who was said to be holding the synagogue doors closed was caught by a stray bullet and also died. Al-Shamie was shot dead. Before his death, he called 999 and reportedly said: 'I have killed two...