This case is hot news in my country in Europe (Poland)
From my country's MSM
"According to a military expert:
'American services should have immediately received a 'red flag' when they saw a 20-year-old man lying on the roof.
- No one lies alone on the roof and no one works alone.
All over the world people work in pairs and even in threes.
We have a spotter who sees what's happening nearby.
It has a larger angle and better visibility.
And next to him is a sniper who has a scope and can see the target.
And they communicate with each other.
If someone told me that there was one person lying on the roof,
the reaction of the services should have been immediate' - says a former military man.
'During this type of events,
the services protect individual sectors.
There is a division of sectors, and unfortunately, responsibility for safety in them often overlaps.
If the information that someone was on the roof reached one of the sectors, there could have been a scuffle between the services.
No one wanted to take responsibility for this particular place with the gunman on the roof.
Already then,
precious seconds were running out'
- says a security expert and veteran of Military Unit."
- To była odległość ok. 120-140 metrów. Zamachowca nie zlikwidowano wcześniej, bo najwyraźniej zawiodła komunikacja między służbami – mówi WP Paweł Mateńczuk "Naval", ekspert ds. bezpieczeństwa, weteran
wiadomosci.wp.pl