Bridgeport, Conn. ? An order for pizza led investigators to the four men accused of kidnapping one of the richest men in America.

That’s because the victim’s credit card was used to pay for it, according to an arrest affidavit unsealed Friday.

“That was dumb,” one of the suspects said after his arrest, the affidavit shows.

Shemone Gordon, 23; Devon Harris, 19; and former Marine Renaldo Rose, 23, all face federal extortion charges. If convicted, they could each be sentenced to 20 years in prison. The court record of a fourth suspect, a juvenile, is sealed.

Millionaire Edward S. Lampert was snatched Jan. 10 from a parking garage in Greenwich.

The 40-year-old was held in a motel room just over a day before being dropped off unharmed near a Greenwich police station. According to news reports, he was set free after promising to pay his abductors $5 million.

Lampert is worth an estimated $800 million and is No. 288 on the Forbes list of wealthiest Americans. He is chairman of ESL Investments.

According to the affidavit, the pizza paid for with Lampert’s credit card was delivered to an address in New Haven associated with one of the suspects.