Steamboat Springs — Routt County Coroner Rob Ryg has concluded that Steamboat Springs residents Page Stockdale and Mark Schiebel both voluntarily committed suicide.

Lab results confirmed how police believed they died. Both had deadly levels of carbon monoxide in their systems. The gas came from a charcoal grill that was found in the back of the enclosed pickup where their bodies were found Nov. 22 at the Sarvis Creek Wilderness parking area.

Stockdale, 58, a well-known woman who had lived in Steamboat for more than 30 years, was reported missing Nov. 18 when she did not show up for a dinner date. It was later discovered Scheibel, 59, who lived in Steamboat for about 15 years, also was missing along with his truck.

When the bodies were found, friends and family members were shocked and puzzled. Pending an investigation, police could not rule out suicide, homicide or an accident.

Those close to Stockdale did not believe she would consider taking her own life.

Stockdale’s family members have now accepted that Stockdale in fact committed suicide.

“It will always be sad that my sister and Mark Scheibel took their own lives, but I’m grateful there was no foul play,” said Stockdale’s sister, Beth Lamberson Warren, who lives in Durango. “We wish for all of Page’s friends to accept the results of the report and remember these two individuals with grace and understanding.”

Schiebel’s brother, Barry Schiebel, who lives in Fort Collins, also issued a statement in response to the coroner’s findings.

“We are heartbroken at the loss of Mark and Page,” Schiebel said in an email. “We now have closure on their situation knowing that they did not go out of this world alone, but in their darkest hour, each had a friend beside them. As we grieve for Mark, we share in the grief that Page’s family is experiencing.”

The extent of the relationship between the two was not clear, but Barry Schiebel said that about 1 ½ years ago, Stockdale came to a family gathering honoring the 71st wedding anniversary of Mark Schiebel’s parents.

“We all fell in love with her immediately,” Barry Schiebel said. “Both Mark and Page will be dearly missed.”

On Thursday, those involved with investigating the deaths met to discuss the case. Ryg said the evidence led everyone in the group to conclude that the couple had made a suicide pact.

Routt County Undersheriff Ray Birch said the Sheriff’s Office investigation likely would be finished by the middle of next week, and reports would then be available.

According to autopsy reports released Friday, Schiebel “has exhibited signs of depression and has spoken of suicide in the past.” Lab tests showed Schiebel did not have alcohol in his system, but he did have painkillers and other medications in his system that are used to treat anxiety and depression. Ryg said the medications were prescribed to Schiebel.

Stockdale had neither alcohol nor drugs in her system.

Throughout her adult life, Stockdale battled pain related to extreme scoliosis.

Stockdale was a devoted member of the Steamboat Christian Center, and friends said she was very caring of others.

“She will be remembered as a person who always took time for each individual in her life,” Stockdale’s obituary stated.

Stockdale’s niece, Kathrine Warren, said her family was appreciative of the support they received from Stockdale’s church, and their heart goes out to the Schiebel family.

“The Steamboat Police Department and the Sheriff’s Office has been wonderful to work with and helped us through a horrible situation,” Warren said.

To reach Matt Stensland, call 970-871-4247, email mstensland@SteamboatToday.com or follow him on Twitter @SBTStensland