 This was a security failure. I think we all assume that any kind of high rooftop is totally covered, totally secured. There are a number of statements being made that more security was requested. They were understaffed. We'll find out. Authorities do believe Crooks acted alone, which made it difficult to prevent. It's like finding a needle in a haystack when you're trying to find a lone wolf because there's less of an evidentiary basis to tip off law enforcement.