Watch Obama Address Homicidal Gun Violence Again, And Again, And Again, And Again, And...

President Barack Obama found himself in a familiar, dark place on Thursday: addressing the nation about a shooting that had taken multiple lives.

It was the 14th time during his administration that he had been forced to issue a statement in response to a mass killing, according to CBS’ Mark Knoller. And his frustration over having to repeatedly mark these morose occasions clearly weighed on him. The president spent a large part of his remarks bemoaning how the political system has completely failed to respond to gun violence.

A look back underscores the growing sense of hopelessness the president must feel. Once clinical and business-like when responding to tragedy, Obama now seems emotionally worn down and at times overtly angry when these incidents occur. Above is footage of the president in the wake of gun-related violence: from the shooting at Fort Hood, Texas, to the killings in Aurora, Colorado; the near-assassination of Gabby Giffords to the slaughtering of children in Newtown, Connecticut; the murders at a Sikh temple in Milwaukee to the latest deaths at a black church in Charleston, South Carolina.

Watch the video above.