Kindergartner brings gun to Texas school, 3 hurt

My big question is how does a kindergartener get access to a loaded handgun in the first place? I have no issue with people owning guns, but if you have kids in your house, LOCK THEM UP!!!!!! (the guns, not the kids)

http://hosted.ap.org/dynamic/stories/U/US_HOUSTON_SCHOOL_GUN?SITE=AZMES&SECTI...