For 35 years, the brutal murder of **23-year-old Tonya McKinley** remained one of Pensacola, Florida’s most haunting cold cases. Then a discarded cigarette, advances in forensic DNA, and genetic genealogy led investigators to **Daniel Leonard Wells**. On **January 1, 1985**, Tonya McKinley was found dead after being seen hours earlier celebrating New Year’s Eve. Investigators determined that she had been strangled and sexually assaulted. Despite an extensive investigation, no one was arrested, and the case remained unsolved for decades. More than three decades later, investigators returned to the evidence with technology that simply wasn't available in 1985. Using **forensic DNA and genetic genealogy**, detectives developed new leads that eventually pointed toward Daniel Leonard Wells. Investigators began watching Wells and recovered a discarded cigarette butt for DNA testing. That cigarette would become a crucial breakthrough in a murder investigation that had been cold for 35 years. In this true crime documentary from **Evidence Lab Interrogation**, we examine the Daniel Leonard Wells investigation and interrogation as detectives work to uncover the truth behind Tonya McKinley’s death. Watch closely as investigators question Wells, evaluate his answers, introduce evidence, challenge inconsistencies, and apply interrogation techniques while confronting him about a crime committed decades earlier. This case provides a fascinating look at the psychology of police interrogation and, equally importantly, demonstrates how advances in **DNA technology and genetic genealogy can revive a decades-old cold case**. Wells was ultimately arrested and charged in connection with Tonya McKinley’s murder. However, the case would take one final turn before it could reach a courtroom. Wells died while being held at the Escambia County Jail before standing trial, meaning the allegations against him were never adjudicated by a jury. For Tonya McKinley’s family, however, investigators had finally provided answers to questions that had remained unresolved for **35 years**. ━━━━━━━━━━━━━━━━━━━━ **CASE DETAILS** Victim: Tonya McKinley Suspect: Daniel Leonard Wells Location: Pensacola, Florida Date: January 1, 1985 Case Type: Cold Case / Homicide Investigation Breakthrough: Forensic DNA & Genetic Genealogy ━━━━━━━━━━━━━━━━━━━━ **ABOUT EVIDENCE LAB INTERROGATION** Evidence Lab Interrogation examines real police interrogations, suspect interviews, bodycam encounters, and criminal investigations with a focus on **evidence, interrogation strategy, contradictions, investigative psychology, and the critical moments that can change an entire case**. Our documentaries are designed to allow viewers to observe how investigators interact with suspects, evaluate statements, introduce evidence, and attempt to establish what happened. If you enjoy full police interrogations, cold-case investigations, detective interviews, bodycam footage, and evidence-driven true crime documentaries, **subscribe to Evidence Lab Interrogation** for more. ━━━━━━━━━━━━━━━━━━━━ **DISCLAIMER** This video is presented for documentary, educational, journalistic, and public-interest purposes. Its purpose is to provide insight into real criminal investigations, police interrogation techniques, evidence evaluation, and law-enforcement procedures. Any discussion of behavior, psychology, or interrogation strategy represents observational analysis and should not be interpreted as a professional psychological or mental-health diagnosis. Individuals accused of crimes are presumed innocent unless and until proven guilty in a court of law. Daniel Leonard Wells died before his case proceeded to trial; therefore, the allegations against him were never adjudicated by a jury. This documentary is not intended to glorify criminal conduct or sensationalize the victim or the circumstances surrounding her death. **Tonya McKinley and the impact of her death on her family remain at the center of this case.** ━━━━━━━━━━━━━━━━━━━━ **HASHTAGS** #DanielLeonardWells #TonyaMcKinley #EvidenceLabInterrogation #PoliceInterrogation #TrueCrime #ColdCase #ColdCaseSolved #ColdCaseInvestigation #DNAEvidence #ForensicDNA #GeneticGenealogy #Interrogation #PoliceInterview #DetectiveInterview #InterrogationAnalysis #CriminalPsychology #PolicePsychology #InterrogationTechniques #PoliceBodycam #BodycamFootage #HomicideInvestigation #MurderInvestigation #CriminalInvestigation #Pensacola #PensacolaFlorida #FloridaTrueCrime #TrueCrimeDocumentary #CrimeDocumentary #ColdCaseFiles #UnsolvedMurder #SolvedColdCase #RealInterrogation #DetectiveInterrogation #CrimeInvestigation #ForensicEvidence #DNA #TrueCrimeCommunity