HIGHLANDS RANCH, Colo. - A standoff with an armed teenager ended with the boy and his mother dead in a Highlands Ranch home and a family member seriously injured while trying to escape.
The Douglas County Sheriff's office said the incident was under investigation Saturday as a murder-suicide.
On Saturday night, the Douglas County Coroner's Office identified the mother as Tatiana Klamo, age 46, of Highlands Ranch. She died from multiple gunshot wounds, and the coroner ruled her death a homicide.
Her son, Robert Klamo, age 15, died from a single gunshot wound. His death was ruled a suicide.
The business partner of Klamo told 7NEWS on Saturday that an argument over medication preceded the shootings.
Neighbors first contacted 7NEWS, asking about the heavy police presence along their street at about 8 p.m. Friday. The incident unfolded near Fox Hunt Circle and Old Stone Drive.
"We have sent out two code reds notifying residents in the neighborhood to go to their basement stay inside until we can provide additional information," said Douglas County Undersheriff Tony Spurlock.
Deputies were called to the home around 7:30 p.m. on a report of a shooting.
Witnesses said two females escaped from the house -- both climbing out second floor windows to the roof.
"Investigators have interviewed them (women who escaped) and indicated that their younger brother was the one that we're searching for," said Spurlock.
The business partner of Tatiana Klamo said the son was on medication.
"All of this stems from, her son was having a terrible time with mental illness and he's been battling the typical teenage stuff of not wanting to take the medicine," Brian McCoy told 7NEWS reporter Molly Hendrickson. "She went home arguing about that last night and she was actually going to send him back to the hospital, he'd been hospitalized for a period of time and she was going to send him back to deal with that."
One of the two family members who escaped broke her back when she slipped and fell from the roof of the home, McCoy said.
"Her oldest daughter in surgery right now -- she's in back surgery right now. She has no feeling in her lower legs, so we're hoping because she did have some feeling earlier in the day," said McCoy.