20th July 1971: John Lennon (1940 - 1980) with his wife, Yoko Ono in London.  (Photo by Central Press/Getty Images)
Central Press/Getty Images

On the 36th anniversary of John Lennon's death, Yoko Ono wrote a note on Facebook, urging Americans to put down guns. Lennon was murdered by Mark David Chapman outside the Dakota, the New York City apartment building where he lived with Ono and their son Sean, on Dec. 8, 1980.

"Every day, 91 Americans are killed with guns," Ono wrote, sharing a photo of Lennon's bloody glasses, overlooking New York City (she's shared the photo multiple times over the years, with the death toll from gun violence tallying higher each time.

"We are turning this beautiful country into a War Zone," she continued. "Together, let's bring back America, the green land of Peace."

Ono's Facebook post:

"Dear Friends,

Every day, 91 Americans are killed with guns.
We are turning this beautiful country into a War Zone.
Together, let's bring back America, the green land of Peace.
The death of a loved one is a hollowing experience.
After 36 years, our son Sean and I still miss him.

Yoko Ono Lennon
8 December 2016"