In 1980, the Beatles' John Lennon was shot and killed outside the Dakota apartment building in New York City. It was far from the first or last high-profile incident of gun violence in America, but the memory is still painful.
On Wednesday, his widow, Yoko Ono, posted a harrowing reminder of that loss on Twitter: a photo of Lennon's iconic eyeglasses smeared with blood.
The photo, which was also used on the cover of Ono's album "Season of Glass," included a note that more than a million people have been killed by guns in America since the day of Lennon's murder in December 1980.
"The death of a loved one is a hollowing experience," Ono wrote. "After 33 years our son Sean and I still miss him. Yoko Ono Lennon."