11-Year Cold Case Investigation Timeline (2015 – 2026)
Scrub along the decade slider or select milestone stages to observe forensic technology transitions and investigative milestones.
Forensic Genetic Genealogy (FGG) Confirms Identity
Investigators partnering with private genomics labs construct a genealogical tree from degraded skeletal DNA SNP arrays. Tracing 2nd and 3rd cousins eliminates false hypotheses, identifying the remains as a missing woman from Northern California and providing long-awaited answers.
Forensic Evidence Node Matrix
Click nodes to toggle active evidentiary filters and evaluate their scientific constraint strength.
Isotopic Bone Analysis (Oxygen & Strontium)
Stable isotope ratio mass spectrometry (δ18O and 87Sr/86Sr) on femurs identified water signature consistent with youth in Northern California / Sierra Nevada foothills and adult residency in the Pacific Northwest corridor.
Candidate Hypothesis Tester
Simulate candidate filtering based on active evidence criteria.
Investigator Case Brief & Scientific Provenance
Verified findings matching the canonical cold case investigation schema.
In 2015, skeletal remains of an unidentified female ("Parrotts Ferry Jane Doe") were recovered under the Parrotts Ferry Bridge spanning New Melones Lake in Northern California under suspicious circumstances. Traditional CODIS STR typing and National Missing Persons database searches yielded zero definitive hits due to post-mortem DNA degradation and lack of direct familial reference samples.
Over the succeeding 11 years, multidisciplinary forensic science progressively constrained the search space: isotopic bone profiling bound her travel geography to Northern California and the Pacific Northwest, anthropological dental imaging excluded 14 regional candidates, and in 2026, high-density SNP microarray extraction combined with Forensic Genetic Genealogy (FGG) definitively identified the decedent, formally closing an 11-year mystery.