Top Democratic leaders on Thursday called for stringent federal gun control regulations as another US mass shooting in a southern California bar killed at least 12 people, including a police officer. "Some will say California's strong gun laws didn't prevent this shooting, but without stronger federal gun regulations, there's little California can do to keep guns coming in from other states. Without stronger laws to prevent straw purchasing and close the gaping holes in our background check system, a presumptive murderer barely has to lift a finger to buy a gun," Senator Dianne Feinstein said. As Americans grieved the deaths of innocent lives in the bar shooting on Wednesday night, Feinstein blamed the ruling Republicans for blocking efforts towards a major gun control laws.

"Today we add Thousand Oaks to the ever-growing list of communities that have suffered mass shootings," she said. "These mass murders are depressingly pervasive. Schools. Theaters. Malls. Offices. Synagogues. Grocery stores. Bars. Concerts. Churches. They're inspired by racism, revenge, terrorism or just pure hatred. The one common attribute: easy access to guns," Feinstein said. While one does not know all the details of this latest shooting, she said the solution to reducing the frequency of these murders is well known. "What we're missing is Republican willpower to get it done," she said. "A renewed ban on military-style assault weapons - which have no place in civilian society - is ready for a vote. A bill to ban high-capacity ammunition magazines is ready for a vote. A bill to ban bump stocks, which Republicans agree should be illegal, is ready for a vote," Feinstein said.