"All I could do was stand there and watch my dog get eat," said Cynthia Robinson, the owner of Tank, a 6-year-old pit bull which was attacked by the gator.
Earl LaFrance was identified as a potential suspect after being linked to a previous complaint alleging that a dog was being kept inside a garage.
The dog—reportedly a pit bull terrier—bit a number of children after it got loose during the recess of third and fourth graders.
When approached, the dog was "barking and lunging on the leash."
Police said the 8-year-old pit bull raced toward officers "like a missile" before they fired shots.