Can you give details?
Don’t know that the details have ever been released. GWHB was with the CIA at the time. Some say he can be identified in pictures. If you ask him where he was when Kennedy was shot. He answered he doesn’t remember. Suspect in the least Why not just answer he was there working for security.
There are some days that if we were adults we will never forget what we were doing when history was made. That day is one of them.