@layer
Sorry couldn't link your post
No. The 20 seconds is the time lapse from local LE notification to the Local LE lead in the Command center.
The lead immediately informed his counterpart at the Secret Service. They were all located in the same room.
The Secret Service failed to record their communication that day. I violation of procedure.
No one knows why the detail was not notified.
Rowe did state the former President's SS detail was on it own separate radio system.
Rowe couldn't answer how the SS command center was to communicate directly with the Secret Service detail.
(I'm blown away, 17 days and he still doesn't know how they world to contact the Secret Service detail.)
Moo from the Congressional hearing today