Commentary: U.S. Senator Martin Heinrich (D-N.M.) released the following statement on the mass shooting in San Bernardino, California:
"At this point we don't know who committed these heinous murders or why. But we cannot become numb to these tragedies and we must be willing to take action to protect our communities.
"My thoughts are with the victims and their loved ones, the first responders, and the entire San Bernardino community."