And I'm sure if a student was bitten and injured by this animal, the same student who called Fox would have said the officer should have acted to stop the animal. (not sarcastic)
Whether or not you believe the student’s assertion to be correct, the fact remains, that the story was brought to the attention of the news station by a student who was presumably an eyewitness.
If this dog was so dangerous, why did most of the high school students remain outside when they could have entered the building in safety? Why did they ignore the police officer’s advice to enter the building if they were convinced that a dangerous animal was running amongst them?