Man Arrested for Abuse of Corpse After Woman’s Body Found in Cottage Grove



COTTAGE GROVE, OR – Authorities have arrested a man in connection with the discovery of a deceased woman found on the sidewalk in front of 711 Highway 99 in Cottage Grove. The body was discovered at approximately 3:50 a.m. on March 28, 2025, prompting an immediate response from Cottage Grove Police.

Upon arrival, officers determined the woman was deceased. Initially, her identity was withheld pending notification of next of kin. Based on information gathered independently, it was determined that the deceased had been staying at a local motel before her body was moved.

Mark Michael Detering, (possibly related in some form) was arrested yesterday for allegedly removing her body from the motel after her death and abandoning it on the sidewalk where it was later


discovered. This information was also gathered independently and has not been confirmed by law enforcement. Detering has been charged with Abuse of a Corpse in the Second Degree (ORS 166.085), a felony offense. His arrest is under the same case number, 2025-0414, as the original death investigation.

Following his arrest by the Cottage Grove Police Department, Detering was transferred to the Lane County Jail, where he remains in custody. However, police have not yet confirmed or commented on Detering’s arrest and booking. Authorities have also not released further details about the cause of death, which remains under investigation.

Anyone with information regarding this case is urged to contact the Cottage Grove Police Department’s non-emergency line at (541) 942-9145.

Information from CGPD - anonymous sources - and jail records

Michael Weber, known for his extensive coverage of crime news in Lane County, continues to provide valuable updates to the local community. He runs the largest crime watch group in Lane County, Lane County Mugshots Uncensored, which currently has over 86,200 members. Support for local journalism is essential, and donations can be made via Venmo to @Michael-Weber-379 (last four digits of phone number: 0825).

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