After the murder, Klyce was a victim of identify theft, he said. Someone charged a $3,000 overseas airline ticket from New York to Madrid on her credit card. However, Connolly said Wheeler did not carry his wife’s card and a link to his murder seems highly unlikely.
http://www.cnn.com/2011/CRIME/02/20/delaware.killing/?hpt=T2
She also attacked the police investigation into his death and claimed it hard ‘made her life miserable’. Officers have confiscated personal items including credit cards and strange charges have been appearing on them in recent weeks including two flights worth $3,000, she said.
After the cards were in the 'custody'of the police? It doesn't make that clear.
Her cards weren't with her husband, but with her - until the police took them?
That's the way it sounds.