Sheriff’s spokesman Bobbie McCoid said that one victim, Jeanne Mennell, 84, was the mother-in-law of the other victim, 61-year-old Mark Koeman.
Mennell lived at 20377 Pahgre Road, where the deaths occurred at approximately 9:15 a.m. on July 23, and Koeman lived at 20433 Pahgre Road.
Autopsies conducted by Montrose county coroner Dr. Thomas Canfield show that Mennell died of “asphyxia secondary to smothering” and was ruled a homicide. Koeman’s cause of death was “a single intraoral gunshot wound to the head,” and was ruled a suicide, Canfield reported.
A neighbor who lived down the road said the families had lived on the adjoining properties for many years, but he didn’t know them well. Another neighbor refused to comment. The Montrose Sheriff’s Department log for July 23 reports that deputies responded to the report of shots fired in the 20300 block of Pahgre Road at 9:17 a.m.
POSTED ON JULY 23, 2010
Police Are Investigating a Probable Murder/Suicide The deceased have been identified as Jeanne L. Mennell, 84, and Mark A. Koeman, 61. MONTROSE – Officials from the Montrose County Sheriff’s Office and the Colorado Bureau of Investigation are conducting an investigation of an apparent murder/suicide that occurred at approximately 9:15 a.m. on Friday morning.
The dead have been identified as Jeanne L. Mennell, 84, and Mark A. Koeman, 61. Their bodies were found at 20377 Pahgre Rd.
Definitive cause and manner of death are pending the results of autopsy findings.


