 That's not true. The Secret Service and local authorities were aware of the gunman long before he climbed on the roof. Quoting from CNN, the shooter was spotted by local law enforcement who thought he might have been acting suspiciously near the event magnetometers on Saturday, according to a senior law enforcement official. They put her out over the radio to keep an eye on him, and that information was passed on to the Secret Service as well. So already we can say definitively that if the Secret Service did their job,