Cold Cases of the Golden Coast

Reconstruction. Photo from NamUs. At about 9am on Thursday, October 30, 1980, a hiker discovered a badly decomposed body in a brush-covered field near the intersection of Colfax & Iowa Hill Rd.s in Colfax, Placer County, CA. Traffic on the Colfax-Iowa Hill Road was halted that morning while sheriff's investigators examined the scene, which was less than a mile west of the Iowa Hill Bridge. It was determined that the body, which was that of a young woman, had been deceased for at least one year, and her estimated year of death is 1979. Her COD is undetermined, and there were no weapons or signs of violence at the scene, but her case is being investigated as a homicide. Investigators were unsure whether she died at the scene, which is a known dumping site for trash, or at a different location. Jane Doe was estimated to be a white female, 18 to 27 years old; however, a newspaper article from the time stated that she was believed to be 18 to 22 years old. She was 5'0 to 5'5...

On Thursday, November 1, 1973, Corinne June Groenenberg, 16, left her family's residence in Modesto, Stanislaus County, CA. A family friend told authorities that they saw Corinne walk to the highway and begin hitchhiking shortly afterwards. The family friend saw Corinne enter a blue or green truck with an unidentified male driver.  According to an update from the Charley Project on September 15, 2025, Corinne was carrying a sleeping bag and a "red Indian blanket" when she was last seen. She was also wearing a blue denim jacket and blue jeans.  Corinne Groenenberg. Photo from NamUs. Corinne is a 5'6, 115 lbs white female with straight brown hair and blue eyes. She has a strawberry birthmark on her back, as well as a surgical scar on her abdomen. Corinne was born on either October 4, 1959 (making her 14 at the time) or October 14, 1957 (making her 16); most agencies list her as 16 at the time of her disappearance. Some agencies may list her first name as Connie. Corinne...