Bloomberg teams up with shooting victims' families in gun control campaign

Dozens of family members who lost loved ones to bullets gathered at City Hall Monday to once again call on the president and Congress to curb gun violence.

Mayor Michael Bloomberg's coalition of elected officials, Mayors Against Illegal Guns, launched another online campaign in light of the Newtown school shooting that left 20 children and seven adults dead.

The mayor and the family members said they were fed up that President Barack Obama and various congressional members have done nothing legislatively as 24,100 Americans have died since the 2011 shooting in Tucson, Ariz., that left six people dead and 13 injured, including former Rep. Gabrielle Giffords.

"If this moment passes into memory without action from Washington, it will be a stain upon our nation's commitment to protecting the innocent, including our children," the mayor said of Friday's incident.

The coalition sent video testimonials from 34 relatives of victims from various gun-related murders to all Congress members.

The mayor said federal legislation is in the works that would close gun check loopholes for online gun sales and gun shows. He called on the president to push for a ban on assault rifles and large ammo magazines.

"These weapons and ammunition can be used to kill large numbers of people quickly, and regulating them certainly falls within the bounds of the Second Amendment," Bloomberg said.