The BBC has more info on the John Lennon exhibit now on display at the Rock & Roll Hall of Fame Annex in New York, including the details that the clothes Lennon was wearing when he was killed are included, although they are still wrapped in a sealed paper bag. Quite morbid, and I don't really understand their inclusion.
His widow Yoko Ono, who has created the display, said the clothes were "hard to include" and she feared she "might be criticised as well" for including them.
The Liverpool Daily Post offers a little more context to Yoko's decision:
But ultimately, Ono said she thought it was important to let people see the effects of gun violence.