A federal agent says the father of former Detroit Mayor Kwame Kilpatrick deposited $605,000 in cash in the bank over a seven-year period.

Rowena Schuch of the Internal Revenue Service says she doesn't know the source of Bernard Kilpatrick's cash. He's charged with tax crimes as well as taking payoffs from people who had business with the city of Detroit.

The Kilpatricks and a third man, Bobby Ferguson, are accused of a sweeping scheme to enrich themselves through extortion, bribery and other tactics while Kwame Kilpatrick was mayor.

During cross-examination Wednesday, defense attorney John Shea said Bernard Kilpatrick "gambled all the time" and suggested that gambling may have been a source of the cash deposits.