Police cars are seen in an Aurora, Colo., neighborhood near where a police standoff took place.(Photo: KUSA)
AURORA, Colo. (KUSA) -- Three people were discovered dead inside a home following a barricade situation Saturday morning.
Police entering the home shot and killed the gunman after hours of failed negotiation attempts.
Police Sgt. Cassidee Carlson says the suspect was shot and killed when he exchanged fire with officers at about 9 a.m. The three victims - all adults - appeared to have been killed earlier.
At 3 a.m., Aurora Police sent out emergency notifications for residents near the 16000 block of East Ithaca Place. Several nearby homes were evacuated for safety reasons.
One person inside the home was able to escape and alert authorities.
The names and ages of the victims and of the suspect were not released.
A motive for the killings also was unknown.
"We're just getting in there with our crime scene detectives, so obviously we'll have to determine if it was our rounds or his rounds," Carlson said. "This is a big investigation, and a lot is entailed."
Roads in the area were closed to traffic.
Violence put Aurora in the national spotlight in July after a gunman's bloody rampage inside a movie theater in the Denver suburb left 12 people dead aSave Draftnd dozens wounded. Prosecutors will go to court Monday to outline their case against the suspect, James Holmes, a 24-year-old University of Colorado graduate school dropout. Holmes faces 166 charges of murder, attempted murder and other charges stemming from the July 20 shootings.
Contributing: Associated Press, Gary Strauss