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Cold case murder trial in killing of Norwalk sixth grader set to move forward

Marc Karun is charged in the 1986 killing of Kathy Flynn, who was attacked while walking home from school.

News 12 Staff

Sep 2, 2026, 6:11 AM

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A man accused of killing a Norwalk sixth grader nearly 40 years ago returned to Stamford Superior Court Tuesday for the first time since a judge declared a mistrial in April.

Marc Karun is charged in the 1986 killing of Kathy Flynn, who was attacked while walking home from school.

The case remained unsolved for decades before advances in DNA technology led to Karun's arrest.

Karun's trial began last spring.

The case ended in a mistrial after allegations of possible evidence contamination.

Prosecutors have said they intend to retry Karun in Flynn's death.

Flynn was killed in 1986 while walking home from school in Norwalk.

PRIOR REPORTING:

Mistrial declared in 1986 murder of 11-year-old Norwalk girl over evidence contamination claim

DNA expert testifies in 1986 Norwalk murder as email suggests possible evidence contamination

Norwalk officer credited with arrest in 1986 killing of 11-year-old girl testifies at accused killer's trial

Jury sees autopsy photos, hears testimony about how Norwalk girl killed in 1986 was bound, strangled

Jury selection begins for man charged in 1986 murder of 11-year-old Norwalk gir

Lieutenant: Cold case arrest bittersweet because it doesn't bring back Kathleen Flynn

Alleged 1986 cold case killer heads back to Connecticut

Arrest made in 1986 cold case murder of 11-year-old Norwalk girl

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