Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP14211) and 9 other sources
On a summer day in July 1991, 40-year-old Katherine 'Kathy' Heckel, a devoted mother and reliable employee from Mill Hall, Pennsylvania, vanished without a trace. She was last seen on July 15, 1991, leaving her job as a management secretary at the International Paper Company in Lock Haven for her lunch break. Before leaving, she called her two children, telling them she had some errands to run and would be eating alone. Katherine drove her silver 1990 Ford Festiva out of the company parking lot and was never seen again. Her family reported her missing the following day. The initial search for Katherine was extensive, involving police, firefighters, and volunteers who scoured nearby forests and rural areas for weeks, but found no clues. Two days after she disappeared, her car was discovered abandoned in the parking lot of Lock Haven Hospital. The car was in third gear with the emergency brake on, but the keys were missing, and the vehicle yielded no significant evidence of her whereabouts.

The investigation quickly focused on one of Katherine's coworkers, Loyd Groves, with whom she had been having an affair. Friends revealed that Katherine had expressed a desire to end the relationship, but Groves was resistant. She had told a friend she was fearful of him, accusing him of stalking her and sending her lewd messages. On the very morning she went missing, Katherine and Groves were witnessed having a loud argument, during which he was seen chasing her through the paper plant. Groves's van was also seen leaving the company parking lot around the same time as Katherine's car. When questioned, Groves claimed to have no memory of his whereabouts at the time of her disappearance and seemed anxious, repeatedly asking if the police considered him a suspect. His behavior, coupled with the troubled nature of their relationship, made him the primary person of interest in the case. Katherine's husband of eighteen years was away on a two-week National Guard training exercise at the time of her disappearance and was quickly ruled out as a suspect.

Years passed without a resolution, and in 1998, Katherine Heckel was declared legally dead. The case, however, was never closed. A significant breakthrough came with advancements in DNA technology. Bloodstains had been found in Groves's van shortly after Katherine vanished, specifically on the upholstery, middle seat, and interior light. At the time, testing could only determine that it was Type A human blood, the same as Katherine's. Years later, modern DNA analysis confirmed with mathematical certainty that the blood belonged to Katherine Heckel. This crucial piece of evidence, combined with witness testimony and Groves's suspicious behavior, led to his arrest in January 2015. In 2018, Loyd Groves was tried and convicted of third-degree murder. He was sentenced to 10 to 20 years in prison, the maximum allowed for the crime at the time of Katherine's disappearance. Despite the conviction, Groves has maintained his innocence and has never revealed what happened to Katherine. Her body has never been found, leaving her loved ones without a final resting place and complete closure in a case that haunted the small Pennsylvania community for decades.

Last Seen: Jul 15, 1991

Possible Unidentified Matches (10)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

78%Possible
Jane Doe — Philadelphia, Pennsylvania - unidentified case UP2721
Jane Doe — Philadelphia, Pennsylvania
UP2721 • Found Jan 12, 2000
View case
Sex ✓Female
Age 100%Est. 30–45 vs 40 when missing
Race 100%White
Location 66%144 mi away, same state
TimingFound 8 years after last seen
Height 100%5'3" vs 5'3"–5'6"
Weight 100%160 lb vs 130–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
78%Possible
Jane Doe — Hackensack, New Jersey
UP1617 • Found Jul 19, 1992
View case
Sex ✓Female
Age 100%Est. 30–40 vs 40 when missing
Race 100%White
Location 59%180 mi away
TimingFound 12 months after last seen
Height 100%5'2" vs 5'3"–5'6"
Weight 100%137 lb vs 130–150 lb
Hair 100%Brown vs Brown
76%Possible
Jane Doe — Brooklyn, New York - unidentified case UP5768
Jane Doe — Brooklyn, New York
UP5768 • Found Mar 13, 2002
View case
Sex ✓Female
Age 100%Est. 40–50 vs 40 when missing
Race 100%White
Location 58%187 mi away
TimingFound 11 years after last seen
Height 100%5'5" vs 5'3"–5'6"
Weight 100%138 lb vs 130–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
76%Possible
Jane Doe — Brooklyn, New York - unidentified case UP6824
Jane Doe — Brooklyn, New York
UP6824 • Found Sep 16, 1997
View case
Sex ✓Female
Age 100%Est. 45–55 vs 40 when missing
Race 100%White
Location 58%187 mi away
TimingFound 6 years after last seen
Height 84%5'1" vs 5'3"–5'6"
Weight 100%155 lb vs 130–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
76%Possible
Jane Doe — Brooklyn, New York - unidentified case UP7726
Jane Doe — Brooklyn, New York
UP7726 • Found Apr 23, 1994
View case
Sex ✓Female
Age 85%Est. 20–40 vs 40 when missing
Race 100%White
Location 58%187 mi away
TimingFound 3 years after last seen
Height 100%5'6" vs 5'3"–5'6"
Weight 100%140 lb vs 130–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
76%Possible
Jane Doe — Queens, New York - unidentified case UP8027
Jane Doe — Queens, New York
UP8027 • Found Jan 22, 1993
View case
Sex ✓Female
Age 100%Est. 40–55 vs 40 when missing
Race 100%White
Location 56%194 mi away
TimingFound 18 months after last seen
Height 84%5'1" vs 5'3"–5'6"
Weight 100%119 lb vs 130–150 lb
Hair 50%Blond vs Brown
Eyes 100%Brown vs Brown
76%Possible
Jane Doe — Queens, New York - unidentified case UP8339
Jane Doe — Queens, New York
UP8339 • Found Jul 21, 1992
View case
Sex ✓Female
Age 85%Est. 30–50 vs 40 when missing
Race 100%White
Location 56%194 mi away
TimingFound 12 months after last seen
Height 100%5'5" vs 5'3"–5'6"
Weight 91%170 lb vs 130–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
76%Possible
Jane Doe — Woodstock, New York
UP10014 • Found Dec 31, 1991
View case
Sex ✓Female
Age 100%Est. 35–45 vs 40
Race 100%White
Location 58%186 mi away
TimingFound 6 months after last seen
Height 100%5'2" vs 5'3"–5'6"
Weight 100%150 lb vs 130–150 lb
75%Possible
Jane Doe — New York, New York - unidentified case UP7801
Jane Doe — New York, New York
UP7801 • Found May 5, 1994
View case
Sex ✓Female
Age 85%Est. 20–40 vs 40 when missing
Race 100%White
Location 58%185 mi away
TimingFound 3 years after last seen
Height 100%5'3" vs 5'3"–5'6"
Weight 70%95 lb vs 130–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
Jane Doe — Bronx, New York - unidentified case UP7897
Jane Doe — Bronx, New York
UP7897 • Found Oct 24, 1993
View case
Sex ✓Female
Age 85%Est. 35–55 vs 40 when missing
Race 100%White
Location 57%190 mi away
TimingFound 2 years after last seen
Height 100%5'3" vs 5'3"–5'6"
Weight 100%126 lb vs 130–150 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

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