UNION • A Lamborghini-driving man from Union who pretended to be a U.S. marshal in dealings with at least two girlfriends was arrested Thursday on charges of identity theft and impersonation, officials said.

Documents filed in U.S. District Court in St. Louis and Franklin County Circuit Court and the Union police report describe Timothy A. Rossell’s current case this way:

Rossell, 28, had been living about nine months with his fiancée, 27, who knew him as Deputy U.S. Marshal Austyn Gardner. Without her knowledge but in her name, he bought several vehicles and opened three credit card accounts and a PayPal account, racking up more than $20,000 in debt.

After she confronted him, Rossell fled in a white 2015 Lamborghini Gallardo, and she called Union police. They and real U.S. marshals quickly learned Rossell’s badge and identifications were bogus. Rossell has never been a federal employee, the police report says.

They also learned of another girlfriend, also 27, in Ft. Myers, Fla. She knew Rossell as Deputy U.S. Marshal Austyn Labella. They dated for several months, and she told officials he had persuaded her to buy the Lamborghini and a 2016 Chevrolet Corvette Z6. She also lent him $27,000.