John Lennon's widow, Yoko Ono, is using her late husband’s blood-smeared glasses to advocate against gun violence.
The Beatles legend was shot to death in New York City on December 8, 1980. He was wearing glasses at the time he was killed, and the same glasses are used in the poster Yoko shared with this tweet: "The death of a loved one is a hollowing experience. After 33 years our son Sean and I still miss him. Yoko Ono Lennon."
Yoko also used the glasses on the cover of her album, Season of Glass, which came out six months after Lennon's death.
Sources: @YokoOno, The Wrap