(NewsNation) — Witness testimony resumed on day two of the trial of Kaitlin Armstrong, who is accused in the May 2022 shooting death of professional cyclist Anna Moriah “Mo” Wilson.

Armstrong, 35, who had allegedly been involved in a love triangle between herself, her boyfriend and Wilson, faces first-degree murder charges.

Police said Wilson, 25 and a Vermont native, had previously dated Armstrong’s boyfriend, Colin Strickland, a competitive gravel racer. Investigators cleared Strickland in Wilson’s death, with prosecutors saying that video and cellphone calls, texts and location data confirm he was nowhere near the shooting.

Armstrong is also charged with second-degree felony escape causing bodily injury after she ran from corrections officers while leaving a medical appointment outside the jail two weeks ago.

Officers chased Armstrong for 10 minutes before she was restrained and returned to custody.

Wilson was found unconscious with a gunshot wound to the head May 11, 2022 in an Austin, Texas home. Unidentified at the time, she died at the scene.

During opening testimony in Armstrong’s trial Wednesday, Wilson’s brother, Matthew, took the stand, along with Caitlin Cash, the friend who found her body and various first responders.

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Homicide Detective Rolando Ramirez of the Austin Police Department was the first witness to take the stand Thursday, with defense attorneys asking him about the detectives’ process when investigating.

Defense attorneys asked if Ramirez notes timecodes when he discovers new evidence, and when he files his reports after investigating a scene.

Ramirez said his philosophy for investigating a death is to not let responding officers tell what happened at a crime scene, but to let evidence show that instead.

Armstrong’s case drew international headlines when she fled the country after her initial meeting with police, leading to a 43-day search. Investigators said Armstrong sold her vehicle, then left America using her sister’s name, email, credit card and passport. Federal authorities later tracked her to Costa Rica.

This story is developing. Refresh for updates.

The Associated Press contributed to this report.