Reporter police are trying to identify the two shooters that opened fire at the mall and then the guns came out. This is video making the rounds on social media showing one of the two shooters at the mall in san bruno. Hes opening fire on the second floor of the food court. Surveillance video shows a group of young people scattering. Police say they argued with another group before the shooting. I was right behind here and we heard a lot of shots going pop, pop, pop police say the two shooters escaped despite a Quick Response from officers across the peninsula. An officer was already in the mall when shots were fired. An officer heard gunfire on the second floor. Is 16yearold boy was shot in the stomach. A 12yearold boy was hit in the leg. Both were in serious condition. One of the victims collapsed in front of a jewelry store. It was probably 30 seconds but i thought oh my god, when will it stop . Two groups of people got into an argument. One subject from each group began shooting at