Dateline NBC

Deadly Obsession

TV-14
S33 • E21    Apr 3, 2025    83m
Mike Sisco and his fiancé Karen Harkness are found shot to death in their Topeka duplex in 2002. A years-long search for the killer and three criminal trials over two decades reveals strained dynamics within one victim’s family.

Where to Watch Deadly Obsession

Cast of Deadly Obsession

  • Lester HoltSelf - Host
  • Andrea CanningSelf - Correspondent
  • Justin SmithProducer
  • Izhar HarpazProducer
  • Michael NardiProducer
  • Bob HigginsProducer
  • Robert BuchananProducer
  • Marianne O'DonnellProducer
  • Justin BaldingProducer

 

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