Short answers, pulled from the story.
John Lennon was shot and killed by Mark David Chapman outside his New York apartment building, The Dakota, on the 8th of December 1980. He was pronounced dead on arrival at Roosevelt Hospital at 11:15 p.m. and was 40 years old. Chapman pleaded guilty to second-degree murder and was sentenced to 20 years to life.
John Winston Lennon was born on the 9th of October 1940 at Liverpool Maternity Hospital. He was the only child of Alfred and Julia Lennon and was raised mainly by his aunt Mimi at Mendips on Menlove Avenue in Woolton.
The Nixon administration sought to deport John Lennon because it feared his anti-war and anti-Nixon activism could harm the president's reelection. The Immigration and Naturalization Service began proceedings in 1972, citing his 1968 cannabis conviction in London. A court of appeals barred the deportation on the 8th of October 1975.
The Lennon-McCartney songwriting partnership remains the most successful in history. The two wrote together as members of the Beatles, with Lennon writing songs including "All You Need Is Love," "Strawberry Fields Forever," and "I Am the Walrus." Lennon described McCartney and Yoko Ono as the only two people he chose to work with throughout his career.
John Lennon stepped away from music for five years to raise his son Sean, who was born on the 9th of October 1975. He became a househusband, rising at 6 a.m. to prepare meals, and later said he "baked bread" and "looked after the baby." He returned in October 1980 with the single "(Just Like) Starting Over" and the album Double Fantasy.
Double Fantasy won the 1981 Grammy Award for Album of the Year and a Brit Award for Outstanding Contribution to Music. Lennon was inducted into the Rock and Roll Hall of Fame twice, with the Beatles in 1988 and as a solo artist in 1994, and into the Songwriters Hall of Fame in 1997. In 2002 a BBC poll voted him eighth among the 100 Greatest Britons.