Padak, the credit union's board members, chief executives, vice presidents and Longust were named as defendants in the civil suit, which caught the interest of FBI investigators.

A CU Times inquiry in September confirmed the FBI was conducting an investigation. Scott employees fully cooperated with the investigation, the FBI said.

According to the civil suit, Scott Credit Union allegedly opened unsecured lines of credit in Butz's name without his authorization and signature. The credit union was also accused of using Butz's name and credit to extend commercial lines of credit to multiple fictitious limited liability corporations with which he had no relationship.

A court hearing on the civil suit was scheduled for January.

According to the criminal indictment, Longust was hired in November 2005 and resigned from the credit union in December 2014

He allegedly began his fraudulent scheme in November 2008 by creating an unauthorized loan in the name of the South County Baptist Church. Court documents did not say whether Longust was a member of that church.

Though the amount of the church loan was not specified in court documents, Longust allegedly used more than $76,000 from that loan to pay off his personal credit card bills.

What's more, in May 2010, Longust fraudulently created a second unauthorized loan in the church's name. The amount of that loan also was not specified in court documents.

From May 2010 to December 2014, he allegedly made fraudulent loan advances from the church loan. On Dec. 8, 2014, when Longust resigned from Scott Credit Union, he allegedly made a fraudulent payment of $126,000 from the church loan, according to federal prosecutors.

In addition, on the day he resigned, Longust also allegedly made a second fraudulent payment on the church loan for $54,000 from another loan in the name of Unique Hardscapes. However, there was no loan documentation or security for the Unique Hardscapes loan.

Moreover, the indictment alleged that Longust misapplied Scott funds by completing loan advances from three business loan accounts.

For example, in one instance he made loan advances from a loan account in two transactions totaling $301,000. Those transactions brought the outstanding balance of the loan to $1.4 million.

On the second business loan account, he made loan advances totaling $212,000, which caused the outstanding balance on that account to grow to $1.6 million. On the third business account, Longust made a loan advance of  more than $129,000, which caused the outstanding balance on that loan account to reach $1.5 million.

According to court documents, Longust also allegedly took out an $875,000 loan in the name of Atlas Transportation LLC by falsifying a credit proposal to obtain the approval of Scott's chief loan officer.

Longust falsely indicated the loan would be secured by real estate worth $2 million, and he forged the signature of a bank vice president from another financial institution on a document to show Atlas Transportation maintained a cash balance account of more than $1.5 million.

If convicted on all felony counts, Longust faces a prison sentence of up to 240 years, a fine of up to $4,500,000, up to 5 years supervised release and mandatory restitution, according to prosecutors.

"We cannot comment as this is an ongoing investigation and in spite of this situation, we remain well capitalized and continue to be a strong and sound financial institution serving our members and the communities in which we operate, Adam J. Koishor, Scott chief marketing officer said in a prepared statement.