The Secret Service said they knew a gunman was on the rooftop across from Former President Trump's rally in Penn a full 20 minutes before shots were fired. But, new information shows they had even longer and the shooter, Thomas Crooks, was a person of interest at least an hour prior to shots fired. Chris Burbank, former SLC Chief of Police, joins Dave and Debbie to discuss how law enforcement work directly with the secret service for these types of events. D2 also brings on Karl Schmae, Former FBI Supervisory Agent, to get perspective from the Secret Service side.