The widow of a suburban Chicago police officer who authorities say staged his suicide to appear he was gunned down in the line of duty has been charged with conspiracy for allegedly helping her husband siphon money from a youth program.

Melodie Gliniewicz was charged in January with felony counts of money laundering and disbursing charitable funds without authority for personal benefit. Officials say Wednesday's conspiracy charge is an additional and alternate way of charging her with the same offenses.

She previously pleaded not guilty to the initial charges. An arraignment date on the new indictment is scheduled for April 6.

Gliniewicz's husband, Lt. Charles Joseph Gliniewicz, died Sept. 1. Authorities say he staged his suicide to look like a homicide because he feared discovery of the embezzlement.