Short answers, pulled from the story.
Shinzo Abe was a Japanese statesman who served as Prime Minister of Japan twice, from 2006 to 2007 and again from 2012 to 2020. He became the longest-serving prime minister in Japanese history, surpassing Katsura Taro's 2,883-day record on the 19th of November 2019. He was also the first prime minister born after World War II.
Shinzo Abe was shot on the 8th of July 2022 while delivering a campaign speech for upper house elections in the city of Nara. He died that day. The killer, Tetsuya Yamagami, confessed that his motive was Abe's ties to the Unification Church. It was the first assassination of a former Japanese prime minister since 1936.
Abenomics was Shinzo Abe's economic strategy built on three "arrows": monetary easing aimed at 2 percent inflation, flexible fiscal stimulus, and structural reform for long-term growth. Early results were dramatic, with the Nikkei 225 rising 70 percent and the yen falling from about 77 to 101.8 against the dollar in the first half of 2013. Results were described as mixed overall, and inflation remained below the 2 percent target for much of his tenure.
Abe resigned from his first term as prime minister on the 12th of September 2007, citing both his government's unpopularity and poor health related to ulcerative colitis. He resigned a second time on the 28th of August 2020 when the same condition relapsed, stating he could not fulfill his duties while seeking treatment. He was succeeded by Yoshihide Suga.
Abe came from a prominent political dynasty. His father Shintaro Abe served in the House of Representatives from 1958 to 1991 and held several senior cabinet positions. His maternal grandfather Nobusuke Kishi founded the Liberal Democratic Party in 1955 and served as Prime Minister from 1957 to 1960. Abe described Kishi as his number one role model.
The Quadrilateral Security Dialogue, also known as the Quad, is a strategic forum involving Japan, the United States, Australia, and India. Abe initiated it in 2007 during his first term as prime minister. It was conceived as a counterweight to China's rising power in the Asia-Pacific region.