AUSTIN, Texas (AP) — A Texas woman suspected in the fatal shooting of professional cyclist Anna Moriah Wilson at an Austin home has been arrested in Costa Rica, the U.S. Marshals Service said Thursday.

Kaitlin Marie Armstrong, 34, was arrested Wednesday at a hostel on Santa Teresa Beach in Provincia de Puntarenas, the Marshals Service said in a statement. Armstrong was expected to be returned to the United States, where she faces a murder charge, the agency said.

“The Marshals Service elevated the Kaitlin Armstrong investigation to major case status early in this investigation, which likely played a key role in her capture after a 43-day run,” said U.S. Marshal for the Western District of Texas Susan Pamerleau.

According to KXAN, U.S. Marshals investigators found that Armstrong used a phony passport to board a United Airlines flight from Newark, New Jersey to San Jose, Costa Rica on May 18.

Wilson, 25, was found dead May 11, and Austin police later issued a murder warrant for Armstrong.

Wilson, a competitive gravel and mountain bike racer and Vermont native, had been in Austin for a cycling event. According to an affidavit, Wilson had previously dated Armstrong’s boyfriend, cyclist Colin Strickland, who has cooperated with investigators and is not a suspect.

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