A Connecticut advisor received a five-year prison sentence for allegedly skimming nearly $620,000 in unearned fees from his clients’ accounts.

Aaron Johnson, of Haddam, Conn., received a five-year prison sentence on Friday in the U.S. District Court, District of Connecticut, in New Haven after he pleaded guilty to defrauding his clients.

Johnson was president and chief investment officer of J. Capital Advisors, a registered investment advisor that custodied client assets with Trade PMR.

According to the criminal complaint, Johnson allegedly submitted requests to Trade PMR for fees for a particular client, supposedly earned during a particular time period, and Trade PMR would then deduct fees from the client’s account and deposit them in a J. Capital Advisors account over which Johnson retained exclusive control.

Between April 2010 and December 2012, Johnson allegedly took a total of $619,231.09 in excessive fees from 19 clients.

The criminal complaint also alleges that Johnson attempted to prevent discovery of his scheme by falsely claiming to one of his victims and to state investigators that fees taken from an account were due to a “glitch” in his billing system. In addition, Johnson allegedly sent falsified documents to Trade PMR including bogus account statements and forged letters of authorization purporting to allow him to take fees out of client accounts.

Johnson is also alleged to have submitted falsified account statements to Connecticut investigators in an attempt to show that he had funds sufficient to pay restitution.

The criminal complaint charged Johnson with three counts of mail fraud, one count of wire fraud and two counts of interstate transportation fo stolen money.

Earlier this year, Johnson pleaded guilty to one count of mail fraud. The court ruled that Johnson will pay full restitution to his victims, and ordered him to report to prison on October 2, 2017.