When a Texas woman leaves a celebratory family gathering, she disappears into the night. After decades of her family insisting she wouldn’t have left voluntarily, a long-dead Jane Doe is identified as the missing woman, and investigators attempt to finally solve her murder in this episode of Last Seen Alive.

Sources used to research this episode:

Planview Jane Doe 1982 (DNA Doe Project)

Debra Denise Terrell Mackey (findagrave.com)

Official Records: Marriage Licenses (Lubbock Avalanche-Journal)

Sheriff Getting Numerous Calls (Plainview Daily Herald)

No New Information Reported in Murder (Plainview Daily Herald)

Additional Information Discovered About Corpse (Plainview Daily Herald)

Mystery Surrounds Skull, Skelton (Associated Press)

Family of Missing Person Pleads for Answers (Wes Rapaport / everythinglubbock.com)

Family of Missing Loved One Still Searching for Answers (Wes Rapaport and Leslie Adami / everythinglubbock.com)

Lubbock Woman, Debra Denise Mackey, Still Missing After 35 Years (KCBD11 News)

Ripples of a Pathologist’s Misconduct in Graves and Courts of West Texas (Roberto Suro / New York Times)

Pathologist’s Falsified Autopsies Spawn Charges of Coverup (Roberto Suro / New York Times)

Bodies Return to Haunt Him (Jean Pagel / Associated Press)

Former Coroner Accused of Lying in Texas Trial (Associated Press)

Dead Wrong in Oklahoma (Randall Coyne / Tulsa Law Review)

Police Arrest Former Doctor for Illegal Gun Possession (Associated Press)

Former Pathologist Gets Prison Term — Texas Judge Revokes Erdmann’s Probation (Associated Press)

Firm Says it Paid Pathologist’s Wife for Corpses (Knight-Ridder News Services)

Bone, Skin Bank Paid for Leads on Newly Dead (Rocky Mountain News Daily)

Firm Says it Paid Doctor’s Wife for Bodies (Dallas Morning News)

Obituary: Dr Ralph R. Erdmann, MD

Lubbock Police Revisit Missing Person Cold Case from 1980s (Lucinda Holt / Lubbock Avalanche-Journal)

Texas Rangers Reopen “Jane Doe” Cold Case in Plainview (KAMC News)

Headless ‘Jane Doe’ Found in Plainview Still Unidentified After 40 Years (Samantha Jarpe / everythinglubbock.com)

Headless ‘Jane Doe’ Found in Hale County Identified as Debra Mackey (Christianna Barbosa / everythinglubbock.com)

Headless ‘Jane Doe’ Found in Hale County Publicly Identified (Ellysa Harris / Plainview Herald)

Missing Persons Case Now a Lubbock Homicide (Gabriel Monte / Lubbock Avalanche-Journal)

Obituary: Latasha Ann Terrell (lubbockonline.com)

Law Enforcement Looking for New Leads in 40-Year-Old Murder Case (Everything Lubbock)

If you know anything about the death of Debra Mackey, please call the Lubbock Crime Line at 806-741-1000. You may remain anonymous if you wish.