sandy german who has been covering this story since it happened. this revelation about the unlocked door, do police think that would have prevented the shooting from happening? >> reporter: well, the sheriff said at the news conference today that basically, it's unfortunate that the door was unlocked, but this gunman, karl pearson, was intent on evil is how he put it, and he would have found a way into the school no matter what, because he came armed with not just the shotgun but also a machete and some molotov cocktails and a lot of ammunition, like more than 125 rounds. so it just seemed from that alone that he was bent on getting inside and he would have found a way regardless. >> the sheriff also praised the school for the way officials handled what happened there. it's unfortunate that lessons have to be learned this way. but what was done right, according to authorities out there? >> reporter: so basically, the janitor saw the gunman and he immediately initiated the school lockdown protocol. these kids, these students were