Question: Read the following paragraph and extract the answer for the question: What is the last name of the person who stated, "I don't know whether I will live or die and I don't care, but tell Nguyen Khanh that I have great affection for him and he should avenge me"? After Minh had ordered the rebels to search the areas known to have been frequented by the Ngo family, Colonel Pham Ngoc Thao was informed by a captured Presidential Guard officer that the brothers had escaped through the tunnels to a refuge in Cholon. Thao was told by Khiem, his superior, to locate Diem and prevent him from being killed. When Thao arrived at Ma Tuyen's house, he phoned his superiors. Diem and Nhu overheard him and Tho drove them to the nearby Catholic church of St. Francis Xavier, which they had frequented over the years. Lieutenant Tho died a few months later in a plane crash, but his diary was not found until 1970. Tho recorded Diem's words as they left the house of Ma Tuyen as being "I don't know whether I will live or die and I don't care, but tell Nguyen Khanh that I have great affection for him and he should avenge me". Soon after the early morning mass was celebrated for All Souls' Day (the Catholic day of the dead) and after the congregation had left the building, the Ngo brothers walked through the shady courtyard and into the church wearing dark grey suits. It was speculated that they were recognised by an informant as they walked through the yard. Inside the church, the brothers prayed and received Communion.A few minutes later, just after 10:00, an armoured personnel carrier and two jeeps entered the narrow alcove housing the church building. Lieutenant Tho, who had earlier urged Diem to surrender, saying that he was sure that his uncle o Mau, along with inh and Khiem, would guarantee their safety, wrote in his diary later "I consider myself responsible for having led them to their death".
Answer:
Ngo