Detective Gill

Retired Massachusetts State Police detective who led the original Claire Gravel investigation; now deputy chief of police at Merrimack College

Detective Gill (Retired Massachusetts State Police detective who led the original Claire Gravel investigation; now deputy chief of police at Merrimack College) has appeared as a guest on 1 episode in TMT.

Appearances

  • The Salem Strangler

    20/20 · Sep 26, 2026 · 1 h 27 min

    20/20 recounts the 1986 strangling of Salem State student Claire Gravel and how a similar 2007 attack and DNA led to John Carey's conviction.

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