szeto who identified himself by his first name -- nelson. he stated that he lived on market street in san francisco. officers continued to speak with mr. szeto to establish a rapport, utilizing deescalation techniques. mr. szeto placed his knife down on top of a tire. mr. szeto reached inside his jacket and said, quote, "i have another gun and this one is loaded," end quote. mr. szeto removed what officers described to be a secondhandgun from inside his jacket. and he was now holding on to two handguns, one in each of his hands. additional airport bureau officers responded to the scene with extended range impact weapons. also referred to as eriws, or less lethal weapons. officers also responded with tactical shields. all airport bureau officers on scene are trained members of sfpd's crisis interveengz team or cit. at approximately 7:42 a.m., the airport bureau sergeants established a command post and formulated a plan to contain mre public safety. the then commander declared this to be a critical incident. officers assisted in evacuating sfo