Deadly Obsession
Dateline · Season 2025 · Episode 11
Kansas couple Mike Sisco and Karen Harkness are found dead by their parents before a family fish fry in 2002. A years-long search for evidence and three criminal trials over two decades reveal strained dynamics within one victim's family.INTERVIEWS WITH: Mike Sisco's mother Carol Sisco, daughter Hailey Seel, sister Cathy Boots and brother-in-law Mark Boots; Karen Harkness' daughter Erin Harkness Sutton and son Chad Harkness; Fmr. Topeka police Sgt. Richard Volle; Shawnee County District Attorney Mike Kagay; and others.
Episode Details
Air date, runtime, timezone, and episode position.
Season
2025
Episode
11
Air Date
04/Apr/2025
Air Time
21:00
Runtime
120 min
Overview
Episode summary.
Kansas couple Mike Sisco and Karen Harkness are found dead by their parents before a family fish fry in 2002. A years-long search for evidence and three criminal trials over two decades reveal strained dynamics within one victim's family.INTERVIEWS WITH: Mike Sisco's mother Carol Sisco, daughter Hailey Seel, sister Cathy Boots and brother-in-law Mark Boots; Karen Harkness' daughter Erin Harkness Sutton and son Chad Harkness; Fmr. Topeka police Sgt. Richard Volle; Shawnee County District Attorney Mike Kagay; and others.
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