Solved via IGG NAMUS: UP8913 (SOLVED) • DOE NETWORK: 169UFPA • AGENCY CASE: PSP-N3-11847 • JURISDICTION: Pennsylvania State Police Troop N / Carbon County DA

Evelyn Colon (Beth Doe): Solved 1976 Suitcase Case

The Lehigh River Bridge Discovery: How forensic genomics solved the 1976 Carbon County suitcase murders of Evelyn Colon and her unborn child.

Archival Case File Banner: Evelyn Colon (
SECTION 1: THE OFFICIAL CASE RECORD (VERIFIED FACTS)
Official Case Date December 20, 1976 (ID'd March 31, 2021)
Discovery / Last Seen Location Interstate 80 Overpass, White Haven, Carbon County, PA
Demographic Profile Hispanic Female, 15 Years Old (5'1", 105 lbs)
Anthropological Age Estimate 15 Years Old (DOB: April 17, 1961)
Primary Investigating Agency Pennsylvania State Police Troop N & NCMEC
Forensic Identifiers Available Autosomal SNP Microarray, American Tourister Suitcases, Unborn Fetus

On Monday, December 20, 1976, along the snow-covered banks of the Lehigh River beneath an Interstate 80 overpass in East Side Borough near White Haven, Pennsylvania, a teenage boy spotted three vinyl travel suitcases. Inside the cases—and scattered near the riverbank—were the dismembered remains of a heavily pregnant teenage girl and her near-term, nine-month-old female fetus. For over forty-four years, she was known throughout the Mid-Atlantic as "Beth Doe."

Crime Scene Forensics & Dismemberment Evidence

The victim had been shot in the neck, strangled, sexually assaulted, and systematically dismembered with a serrated bladed instrument. Her ears and nose had been severed postmortem, and her hands and feet were removed in an apparent attempt to prevent fingerprint matching. The dismembered parts were packed into three matching blue-and-green vinyl American Tourister suitcases and tossed from the I-80 bridge deck 300 feet above the river gorge.

Forensic anthropologists determined that the victim was approximately 14 to 18 years old, of Puerto Rican or Mediterranean ancestry, standing 5 feet 1 inch tall. Her unborn baby girl was fully developed and would have survived if delivered at term. An autopsy revealed that parts of her torso were wrapped in local newspapers, including a section of the New York Sunday News dated September 26, 1976.

Chronological Case Timeline

Date / Year Location Event / Investigative Milestone
Dec 20, 1976 White Haven, PA (I-80) Three suitcases discovered containing dismembered pregnant adolescent and fetus.
1983 Carbon County, PA Buried in Laurytown Road Potter's Field with a marker: "Beth Doe."
2007 Laurytown Cemetery Exhumed by Pennsylvania State Police; modern bone and tooth samples obtained for DNA.
2014 Carl Koppelman Retrospective Forensic artist Carl Koppelman releases digital composite portraits of Beth Doe.
2020 NCMEC & Bode Tech Texas Rangers / NCMEC genealogists identify second-cousin matches in Puerto Rico.
March 31, 2021 Hazleton, PA PSP announces positive identification as 15-year-old Evelyn Colon; Luis Sierra arrested for homicide.
SECTION 2: PROMINENT COMMUNITY THEORIES & ANALYTICAL HYPOTHESES
Investigative Ethics & E-E-A-T Guarantee: This analytical section examines documented community theories, crowdsourced timeline comparisons from verified cold-case forums (Websleuths, Reddit r/UnresolvedMysteries, Doe Network), and geographic distribution models. In strict accordance with our nonprofit charter, no living unindicted private citizens are named or accused. All hypotheses evaluate physical markers, transportation corridors, and anatomical evidence.

Genealogical Resolution & Murder Arrest: Luis Sierra

In 2020, investigators with the Pennsylvania State Police and the National Center for Missing & Exploited Children (NCMEC) submitted DNA extracts to Bode Technology for advanced autosomal SNP sequencing. Genealogists triangulated cousin matches to an extended family originating in Puerto Rico with branches in Jersey City, New Jersey.

Detectives contacted the family and learned that 15-year-old Evelyn Colon had disappeared from Jersey City in late 1976 along with her 19-year-old boyfriend, Luis Sierra. Family members recalled that Sierra had told them Evelyn had given birth to a healthy baby girl in Connecticut and did not want to speak with her parents again.

On March 31, 2021, Carbon County District Attorney Michael Greek formally charged 64-year-old Luis Sierra with criminal homicide. Sierra was extradited from his residence in Ozone Park, Queens, New York, to stand trial in Pennsylvania, bringing long-awaited legal accountability for Evelyn and her unborn daughter.

SECTION 3: LAW ENFORCEMENT SUBMISSION & OFFICIAL TIP LINE

Have Information Concerning This Investigation?

Even the smallest detail—a recollection of a vehicle, a seasonal acquaintance, or an old photograph—can provide the missing link to solving a multi-decade cold case. All leads submitted through official channels are cross-referenced with state databases and active forensic profiles.

Pennsylvania State Police Troop N Cold Case Unit
(570) 459-3890
Call Detective
Carbon County District Attorney's Office
(570) 325-2718
Call Agency
FBI ViCAP (Violent Criminal Apprehension)
1-800-CALL-FBI
OFFICIAL CASE CODES: NamUs: UP8913 (SOLVED) • Case Docket: PSP-N3-11847. Reference these identifiers when submitting information.
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