First responders from 50 agencies participated in an active shooter simulation Operation Mountain Sync inside the old CU Health Science Center Thursday.
The exercise involved over 550 firefighters, paramedics and law enforcement officers. For many, it was the first time they were able to work with members of other agencies.
"We're trying to figure out 'you do it this way' and 'we do it this way' and now we have to come together and figure out a way to do it. This kind of training builds that up so that when we go into this type of situation we have a basis to work from," said Sgt. John Crowley of the Lone Tree Police Department.
It is also rare for officers to work side-by-side with paramedics, escorting them safely into a shooting scene and getting them back out.