Shelby County Sheriff Officers arrested Columbiana resident Barbara Louise Patterson Wednesday on one count of conspiracy to commit murder.

Patterson is accused of assisting Kimberly Dawn McGuffie in a plot to hire someone to kill McGuffie’s ex-husband. Patterson is believed to have supplied McGuffie with the drug Lexapro.

The sheriff’s department arrested McGuffie Sept. 8 on charges of criminal solicitation to commit murder, criminal conspiracy to commit murder, unlawful distribution of a controlled substance and unlawful possession of a controlled substance.

Officials believe McGuffie planned to hire someone to kill her husband by planting a mixture of drugs in his drink. McGuffie is currently in the Shelby County jail on a total bond of $545,000. Patterson’s bail is set at $250,000.