A Limestone County sheriff’s investigator has made a third arrest in a case of financial exploitation of an 85-year-old woman from the Clements community.

Nicholas Allen Seckman, 32, of 845 Elkwood Section Road, Hazel Green, was arrested Friday on a charge of first-degree financial exploitation of an elderly person, records show. He is accused, along with two others, of stealing $12,000 worth of property purchased with a stolen Regions Bank credit card and Bank Independent checks, according to a report filed by Investigator Caleb Durden.

Facing the same charge are the alleged victim’s granddaughter and caregiver, 37-year-old Harmony Teri Marshall of Athens, who was arrested Dec. 21, and Brandon Keith Campbell, 28, of 106 Ranger Drive, Madison, who was arrested Thursday. A Limestone County sheriff’s spokesman identified Seckman as Marshall’s boyfriend.

During the course of the investigation, the owner of Sound Depot in Madison identified Campbell as the man who used the credit card several times to buy equipment from the store, according to Durden’s report. A security specialist at Bank Independent also gave the investigator photographs of Campbell and Marshall cashing the victim’s stolen checks. Bank Independent, which identified 10 forged checks written on the account, returned the victim’s money to her and will seek $2,125 in restitution.

Durden told The News Courier at the time of Marshall’s arrest that Marshall stole the checkbook and credit card and was using them to buy items for her drug dealer, including speakers and other items, in exchange for drugs.

Financial exploitation of the elderly is a Class B felony punishable upon conviction by two to 20 years in state prison.