(CNN) - The striking image of John Lennon's bloody glasses, tweeted by his widow Yoko Ono on Wednesday, was resent to President Barack Obama's 28 million Twitter followers Thursday as the debate over gun control continues.
The image shows the round lenses splattered with blood and the text: "Over 1,057,000 people have been killed by guns in the USA since John Lennon was shot and killed on 8 Dec 1980."
Over 1,057,000 people have been killed by guns in the USA since John Lennon was shot and killed on 8 Dec 1980. http://t.co/xxXU3gSlaD—
Yoko Ono (@yokoono) March 20, 2013
Lennon was shot by Mark David Chapman outside the New York City apartment building where he and Ono lived.
Ono later tweeted "The death of a loved one is a hollowing experience. After 33 years our son Sean and I still miss him."
Obama's Twitter account is run by Organizing for Action, the political group formed from the president's re-election campaign organization. One of its first major initiatives is promoting Obama's gun control proposals, which were unveiled in the aftermath of December's deadly school massacre in Connecticut.
One of the measures Obama advanced – a ban on assault weapons – was not included in a bill introduced by Senate Majority Leader Harry Reid on Thursday. That legislation would expand background checks, improve school safety and restrict gun trafficking.
COMPLETE COVERAGE: The battle over gun control