Short answers, pulled from the story.
Hideki Tojo was a Japanese military general who served as Prime Minister of Japan from October 1941 to July 1944. His cabinet oversaw the attack on Pearl Harbor on the 7th of December 1941, bringing Japan into World War II on the side of the Axis powers. He was convicted of war crimes by the International Military Tribunal for the Far East and executed on the 23rd of December 1948.
Tojo resigned on the 18th of July 1944 after the fall of Saipan, which placed Japanese cities within range of American B-29 bombers. The elder statesmen advised Emperor Hirohito that Tojo must go, and when Tojo tried to survive by reorganizing his cabinet, the Emperor rejected the offer and signaled that the entire government should leave power.
After Japan's unconditional surrender in 1945, Tojo attempted suicide by shooting himself in the chest but survived. He was arrested, tried by the International Military Tribunal for the Far East, sentenced to death on the 12th of November 1948, and hanged on the 23rd of December 1948. His ashes were scattered over the Pacific Ocean approximately 30 miles east of Yokohama from a U.S. Army aircraft.
Tojo accepted full responsibility for the war and stated he intended to speak honestly, saying "what is true is true and what is false is false." He was also coached by American prosecutors to revise testimony that had implicated Emperor Hirohito, part of a deliberate effort by MacArthur and Brigadier General Bonner Fellers to shield the Emperor from prosecution.
The Hull note was a U.S. proposal delivered on the 26th of November 1941 that offered to lift the oil embargo in exchange for Japan withdrawing its forces from China and French Indochina. Tojo misrepresented it to the Cabinet on the 27th of November 1941 as an ultimatum, even though it was marked "tentative" and set no deadline for acceptance. That misrepresentation became one of the principal justifications for the decision to go to war.
Tojo's legacy remains deeply contested. A 1997 survey of Chinese university students found that Tojo was the most common answer when asked which Japanese person came to mind. In Japan, the 1998 film Pride portrayed him as a national hero unjustly executed. His granddaughter Yuko Tojo argued that Japan's war was one of self-defense, while his ashes are partially enshrined at Yasukuni Shrine and buried at Mount Sangane and the Koa Kannon.