Colorado Murder-Suicide: Gun Shop Owner Allegedly Kills Wife, 2 Children At Home

A Colorado man allegedly murdered his wife and two of their children before killing himself at their home in a murder-suicide incident.

Christof Kreb, 55, killed his wife of 26 years, Yvette Siegert-Kreb, 50, and two of their children, aged 13 and 9, on Oct 30 at their residence in 1350 Pleier Drive outside of Monument. El Paso County Sheriff’s deputies arrived at the scene shortly after 10 a.m. after one of the surviving Kreb children called 911, and told the dispatcher that one of his siblings was not moving.

Based on the call, the sheriff’s office issued a "reverse 911" call within two miles of the crime scene, and encouraged people "to shelter in place, lock their doors and windows, and stay away from exterior walls," according to the El Paso County Sheriff’s office.

After arriving at the Krebs' family home, the deputies found four people dead.

Christof was a part-owner of a gun shop in Colorado Springs, while Yvette was a retired neonatal intensive care unit nurse. Both of them were U.S. Army veterans, said the family’s representative, Laura Mellini.

The couple had adopted six children from China, and had three of their own. Most of the adopted children had dwarfism as did the Krebs’ youngest biological child.

At the time of the incident, Yvette was homeschooling the 13-year-old, who had a learning disability stemming from dwarfism, and the recently adopted 9-year-old child.

"She was a tireless advocate for mistreated and neglected children," Mellini said, the Denver Post reported.

"This is a devastating loss for this community, and the surviving family members are going to need lots of care, compassion and support," Alexa Gromko, an acquaintance of the Krebs, told the Gazette.

Gromko, whose three children went to the same school as four of Krebs' kids, were one of the residents whom the police called to stay inside.

"I immediately thought of them and texted Yvette," Gromko told the Gazette.

According to Gromko, Yvette never replied to her text. Then they saw an aerial view of the Krebs' family home, and her "heart sank."

"Then it became, 'Who's gone?'" she added.

Gromko said Yvette adopted other children with dwarfism from China after her biological son was diagnosed with the condition.

"She wanted her son to feel like he had people like him in his life, so they specifically adopted children with dwarfism," she told the outlet. "I was so in awe of her devotion and dedication."

The motive behind the murder-suicide was unclear, and the sheriff's office did not reveal the cause of death as the case was still under investigation.

If you have thoughts of suicide, confidential help is available for free at the National Suicide Prevention Lifeline. Call 1-800-273-8255. The line is available 24 hours, every day.