The motorcade procession is SOP in many places when a first responder dies in the line of duty. Not sure if the bomb squad was actually there or just the bomb squad truck, which doubles as an armored vehicle for the Douglas County Sheriff’s Office.
And then there's this, from 19 min ago on reddit:
http://www.reddit.com/r/CBTS_Stream/comments/7na57ns/no_call_sign_and_blocked_aircraft_circa_denver/ I had to type in the link and contents by hand, it wouldn't copy or paste.
I've been watching "blocked" (no light details) aircraft on flightradar24 for the last few hours. A blocked aircraft from Fort Lauderdale just landed at Denver half an hour ago, and another blocked aircraft, from Lake Havasu Airpot, Arizona, is flying over Colorado now. There have been several "no call sign" aircraft flying near Denver.
https://www.flightradar24.com/multiview/ffea5ab,ffea2b7,ffea14f,ffea414,ffe855e,ffe6cb4