WI JACKSON COUNTY JOHN DOE: WM, 28-52, found near Warrens / Knapp, WI - 15 Aug 1978 *DENNIS McCONN*



On August 15, 1978 Jackson County Sheriff’s Office responded to a call to investigate human remains found by loggers in a remote wooded area near the Village of Warrens, Township of Knapp, Jackson County, Wisconsin. Search of the area by officials resulted in the recovery of a skull, lower mandible, and vertebra. The results of a limited autopsy indicated the deceased was a white male between the ages of 28 and 52. A silver-colored ‘Medi-Stud’ brand earring, normally used by piercing salons, was also discovered near the remains, leading investigators to theorize the deceased had at least one pierced ear. Any other remains were never located. The manner of death is recorded as ‘Presumed Homicide’.

DNA Doe Project Status: Research in progress

Jackson County John Doe was a man whose partial remains were located in Wisconsin in 1978. Loggers discovered a skull, vertebra, and mandible, and alerted police. The cause of his death is undetermined, but the manner is presumed to be homicide. He is currently undergoing testing by the DNA Doe Project.
  • Near the remains, a silver "Medi-Stud" earring was located.
    • This suggests the male possibly had at least one of his ears pierced, if this belonged to him.
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Staff member


Sex: Male
Race / Ethnicity: White / Caucasian
Estimated Age Group: Adult - Pre 50
Estimated Age Range (Years): 28-52
Estimated Year of Death: 1974-1978


Type: Unidentified Deceased
Date Body Found: August 15, 1978

Location Found Map

Location: Township of Knapp, Wisconsin
County: Jackson County
Circumstances of Recovery: On August 15, 1978 a skull, lower mandible and vertebra were recovered from the Knapp township area of Jackson County. Based on the evidence located at the scene it is believed that this is a homicide.

Details of Recovery​

Inventory of Remains: Torso not recovered One or more limbs not recovered One or both hands not recovered
Condition of Remains: Not recognizable - Partial skeletal parts only

Physical Description

Distinctive Physical Features

Piercing: It is believed that the deceased may have had one ear pierced; unknown which ear.

Clothing and Accessories

Jewelry: One silver colored Medi Stud Earring. This earring is one believed to have been used by ear piercing salons. - On the Body



Staff member
On Tuesday, August 15, 1978, the Jackson County Sheriff's Office was notified of the recovery of a human skull, in a remote area in the Township of Knapp, Jackson County, Wisconsin. The above photos are a scientific reconstruction approximating the victim's appearance in 1978. The victim's hairstyle, the presence or absence of a beard, mustache, eyeglasses, eye color, height, and weight are unknown. One silver-colored Medi-Stud brand earring was located near the body. The earring is believed to have been used by ear-piercing salons.



Staff member
Name released. Dennis McConn.

Remains located in NW WI identified as Kenosha man missing since 1977​

Partial remains discovered by loggers in 1978 in a remote wooded area of northwest Wisconsin have been identified as Dennis McConn of Kenosha.

That announcement came Thursday, April 1 from Attorney General Josh Kaul and the Wisconsin Department of Justice (DOJ) Division of Criminal Investigation (DCI), the Jackson County Sheriff’s Office (JCSO), and the DNA Doe Project (DDP).

The remains were identified as Dennis McConn -- who went missing from Kenosha in 1977 at the age of 29.

JCSO is seeking the public’s help as the investigation into the man’s death continues. Anyone with information on why Mr. McConn would have been in Jackson County, or any other knowledge of this case should contact the JCSO Crime Stoppers Line at 1-800-228-3203 Ext. 199.

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