"Investigators are always looking for those opportunities, but in this case you end up hitting a home run by sheer luck — to have a P.I. out there," said Giacalone, who's been an adjunct professor at the John Jay College of Criminal Justice in New York since 2012. "For investigative purposes, (video) is one of the greatest things that we can have. It's actually giddy for an investigator. You're like a school kid. It's like Christmas morning, getting a video like that."