Brian Laundrie used Gabby Petito's bank card in the days after she was last seen alive, lawyer says

• Last month Laundrie was charged with using an "unauthorized" bank card after her death.
• Richard Stafford, the Petito family lawyer, now says Laundrie stole and used Petito's card.
• "He stole her credit card, he used her credit card to get home, and then ran from the police," he said.

Brian Laundrie stole and used his fiancée Gabby Petito's bank card in the days after she was last seen alive, the lawyer for Petito's family said.

Richard Stafford told the "Dr. Phil" show on Tuesday: "He ran, he stole her credit card, he used her credit card to get home, and then ran from the police. That's going to show a lot what he was thinking back then."

Authorities previously accused Laundrie of using an "unauthorized" bank card after Petito's death, but did not say that it belonged to Petito.

An arrest warrant, which was issued for Brian Laundrie last month, accused him of spending $1,000 on an "unauthorized" Capitol One debit card in the days following Petito's death.

Petito was last seen alive on August 24. Laundrie had returned to from their monthslong road trip alone on September 1, prompting fears over her whereabouts.

Petito's body was discovered in the Grand Teton National Park in Wyoming on September 19.

Laundrie, who has since been named a person of interest in Petito's disappearance, was reported missing by his parents on September 17. Authorities are trying to find him.