A Cordova, Tenn., insurance agent, already charged with killing his wife, is now accused of stealing more than $500,000 from clients to pay for a collection of cars.

A civil petition filed against Joe Caronna, 45, indicates that six cars and a motorcycle, as well as three bank accounts totaling $30,358, are subject to forfeiture as they were acquired through money laundering, mail fraud, bank fraud and wire fraud, according to the Memphis Commercial Appeal.

The petition alleges that Caronna, an agent with Allianz Life Insurance, cheated his clients out of more than half a million dollars dating back to 2002, with prosecutors alleging he used the funds for “his penchant for collecting vehicles,” the report said.

Caronna’s wife, Tina, 44, was found dead in the back of one of the couple’s vehicles in October 2008 at the end of a Bartlett, Tenn., street. Tina Caronna, a financial services executive, died as a result of asphyxiation, according to a medical examiner.

Two weeks after her death, Joe Caronna deposited a $30,000 annuity check of hers into their joint account, according to police detectives, who later determined that her signature on the check was forged.

Joe Caronna is being held in the Shelby County (Tenn.) jail, charged with first-degree murder. That case is pending action of a grand jury, the report states.

Shortly after Caronna’s arrest in March, a Memphis couple sued him, alleging that over the past five years they gave him $102,963 toward insurance and investments that the agent allegedly made use of personally instead.