Blumenthal said he intended to give a speech Monday marking the nine month anniversary of the tragedy at Sandy Hook Elementary School where 20 children and six educators were killed by a gunman in Newtown, Conn. Blumenthal was unable to give that speech because the Senate canceled its legislative sessions after Aaron Alexis, who was killed by police at the scene, shot 12 people dead in Washington, D.C.

“Yesterday brought back a rush of memories for me, because Newtown is still close in emotional proximity to me as the Navy Yard is close in physical proximity,” Blumenthal said.

Blumenthal said he hoped the new shooting would renew the debate on gun control legislation.

“Will these horrific, unspeakable tragedies make a difference?,” Blumenthal said. “We’re not going away. We’re not giving up.”

Earlier this year, the Senate attempted to pass a bipartisan gun measure that would have increased background checks for all gun purchases, but only 55 senators voted for the bill — five votes short of the 60 needed to overcome a filibuster.

Tuesday's shooting has prompted several Democrats to call on Congress to take up a gun control measure again.