Sen. Dianne Feinstein, D-Calif., responded to Monday’s tragedy at the Washington Navy Yard with another plea for Congress to take action against gun violence.

“This is one more event to add to the litany of massacres that occur when a deranged person or grievance killer is able to obtain multiple weapons — including a military-style assault rifle — and kill many people in a short amount of time. When will enough be enough?” asked Feinstein. “Congress must stop shirking its responsibility and resume a thoughtful debate on gun violence in this country. We must do more to stop this endless loss of life.”
The California Democrat is one of the Senate’s leading advocates for further gun control measures at the federal level, including an assault weapons ban.

Sen. Jay Rockefeller also issued a statement alluding to the broader firearms debate.

“We are becoming far too familiar with senseless, tragic violence. This is the seventh shooting since 2009, and these repeated incidents demand our attention,” the West Virginia Democrat said. “While the details are being sorted out, I hope you’ll join with Sharon and me in offering our deepest sympathies and heartfelt prayers to those affected by today’s horrific act of violence.”

The Senate is postponing Tuesday’s scheduled hearing on “stand your ground” laws in the aftermath of Monday’s mass shooting.

That announcement came late Monday from the office of Senate Majority Whip Richard J.Durbin. The Illinois Democrat had called the hearing before his Judiciary subcommittee.

Sybrina Fulton, the mother of Trayvon Martin, was scheduled to be the lead witness.