Stamford, Connecticut (CNN) A former attorney for Fotis Dulos pleaded not guilty Thursday to charges he conspired to murder Dulos' wife.

Dulos died by apparent suicide while awaiting trial for the murder of Jennifer Farber Dulos, a Connecticut woman missing since May 2019.

Kent Mawhinney had worked for Dulos and was arrested along with the man's former girlfriend in connection with the case of Jennifer Farber Dulos in January.

Authorities believe Farber Dulos is dead. Her body has not been found.

Michelle Troconis pleaded not guilty February 7 to charges she conspired to murder the missing woman, the mother of five.

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