Murder suspect Caitlin Marie Armstrong was returned to the United States on Saturday to face first-degree murder charges in connection with the May 11 shooting death of cyclist Moriah Wilson in Austin, Texas, the US Marshals Service Lone Star Fugitive Task Force It was confirmed.

"Armstrong has been returned to the U.S. and is being held in the Harris County (Texas) jail pending extradition to Austin," a U.S. Marshals Service representative told CNN (opens in new tab).

On June 29, authorities found and arrested Armstrong, who was hiding under a false name at a hostel in Santa Teresa Beach, Puntarenas, Costa Rica.

Through the combined efforts of the U.S. Marshall Office of International Operations, the Department of Homeland Security's Bureau of Investigations, the State Department's Bureau of Diplomatic Security, and Costa Rican authorities, Armstrong was captured and held for four days while awaiting deportation proceedings to be returned to the U.S. authorities.

ABC13 Houston captured exclusive video footage (opens in new tab) of authorities escorting Armstrong at George Bush Intercontinental Airport (IAH). Armstrong kept his head down, covered his face with his hair, and remained silent when questioned about his involvement in the murder investigation.

Marshals tracked Armstrong to Austin Bergstrom International Airport on May 14, three days after Wilson was found shot to death in Austin. She is then believed to have boarded a flight to Houston Hobby Airport and then connected to a flight to New York's LaGuardia Airport

.

Through investigation, it was confirmed that on May 18, the day after APD obtained an arrest warrant, she was dropped off at Newark Liberty International Airport in New Jersey and subsequently used another person's passport fraudulently to board a flight to San Jose, Costa Rica.

When authorities caught and arrested Armstrong in Costa Rica on June 29, they found two passports in a locker at that location, one belonging to Armstrong and the other to a family member.

Deputy U.S. Marshal Brandon Fila would not reveal the name of the passport's owner because of the ongoing murder investigation.

"The passport was a passport issued to someone else and the physical characteristics were very close and she could really use it because she looked like that person. It wasn't fraudulent per se because [the passport] was issued to a specific individual, but she used it to board that flight the day after she knew there was a warrant out for her arrest," he said at the time.

In addition, Fila confirmed that Armstrong had changed her appearance by cutting her hair and changing her hair color to dark brown.

Fila confirmed that Armstrong was charged with first-degree murder on a murder investigation arrest warrant with APD for Wilson's death, as well as a federal warrant for unlawful flight to avoid prosecution.

Phila also confirmed that no other persons have been taken into custody by authorities in pursuit of Armstrong at this time.

Based on legal documents, Cyclingnews has pieced together a timeline of how authorities believe this crime unfolded; Cyclingnews will provide additional information as more information becomes available to authorities through this investigation.