Monica Charles and Debra Williams killed in collision with fire vehicle at North Broadway and Speer Boulevard in Denver, Colorado

DFD said the rescue vehicle was using its lights and sirens as it responded to a report of smoke in a building, and that it had slowed to clear the intersection at the time of the crash.

Denver police are investigating the operation of a system that is supposed to change stoplights when an emergency vehicle approaches. One person was killed Saturday and two others injured when a fire vehicle collided with a Honda Civic in the middle of a busy intersection.

Police are investigating the operation of a system that is supposed to change stoplights when an emergency vehicle approaches called Opticom.

Debra Williams, 53, was the passenger in a Honda Civic that was involved in a collision with a fire engine on Saturday, at the intersection of Speer Boulevard and Broadway. 

However, now, Henry isn't sure where he'll end up. He's just trying to cope with the reality that the people he loved most in his life are now gone.