09/14/2026
Jenna Gerwatowski thought she was doing one of those fun DNA tests that might tell her where her ancestors came from and give her something interesting to talk about. Instead, she accidentally walked into a decades-old mystery from her own hometown. Months after submitting her DNA, Jenna received a call from a Michigan State Police detective asking whether she knew about the “Baby Garnet” case — a mystery involving an infant found dead at Garnet Lake Campground in Michigan in 1997. Jenna absolutely knew the story. She just had no idea her DNA was about to become part of it.
Investigators had reopened the cold case and turned to forensic genetic genealogy after DNA was recovered from the infant’s remains. According to court records reported by CNN, DNA from Baby Garnet’s relatives eventually led investigators to Jenna’s FamilyTreeDNA kit. Analysis indicated Jenna was the infant’s half-niece. Her mother, Kara Gerwatowski, subsequently provided DNA and was identified as Baby Garnet’s half-sister. Suddenly this wasn’t some distant hometown mystery anymore — the family tree had basically kicked the front door down.
The investigation eventually focused on Jenna’s grandmother, Nancy Gerwatowski, a woman Jenna said she had never met. Nancy was arrested in 2022 and charged in connection with Baby Garnet’s death. Prosecutors alleged that Nancy gave birth at home and that the newborn died from asphyxiation after medical intervention was not sought. Her defense has disputed the prosecution’s account, arguing in court filings that the baby was stillborn.
So Jenna went looking for some entertaining family-history results and instead found herself connected to the mystery she had heard about growing up. That has to be one of the wildest possible outcomes of opening DNA results: “Here are your relatives, your ancestry percentages…and apparently detectives would also like a word.