Brenda Sue O’Connor, 20, disappeared in April 1985 along with her partner Lonnie Wayne Bond, 27, and their 1-year-old son Lonnie Bond Jr. The three lived near Leonard Lake’s remote cabin in Wilseyville, California, where investigators later linked victims to Lake and Charles Ng. Videotapes recovered from the property showed Brenda bound and terrorized, and human remains found on the site included her among those identified. Lonnie Bond Jr. was never found.

Leonard Lake died by cyanide ingestion in police custody in June 1985. Charles Ng was arrested in Canada and—after a lengthy legal process—was tried and convicted on multiple murders, including Brenda’s; disturbing footage from the recovered tapes was played at trial and devastated Brenda’s parents, Richard and Sharon O’Connor.

Brenda’s case is one part of a larger series of abductions, imprisonment and killings carried out at the Wilseyville cabin. Does anyone have information about Brenda, Lonnie Bond, or their young son that could add detail about their last known movements or contacts before April 1985?