On the first day of Kaitlin Armstrong's murder trial, prosecutors painted a picture of a jealous yoga instructor who killed Anna Moriah "Mo" Wilson, a talented cyclist who had been in a previous relationship with Armstrong's boyfriend, Colin Strickland. The prosecution alleges that Armstrong tracked Wilson's location and shot her multiple times, including a fatal shot to the heart. They claim Armstrong had access to Strickland's email and Instagram accounts, allowing her to monitor his communications with Wilson.

However, the defense argues that there is no solid evidence linking Armstrong to the murder. They claim that no camera footage shows Armstrong at the scene and argue that the prosecution's case is based on circumstantial evidence.

Wilson's friend, Caitlin Cash, who discovered her body and called 911, testified tearfully during the trial. She described finding Wilson covered in blood and said that she immediately called for help.

Armstrong, who has pleaded not guilty, also faces a federal charge of unlawful flight to avoid prosecution after fleeing to Costa Rica following the murder. She was eventually arrested and extradited to the United States.

The trial comes after Armstrong attempted to escape custody during a doctor's appointment, resulting in an additional felony charge.

The case has garnered significant attention, as Wilson was an accomplished cyclist and her murder shocked the cycling community. Strickland, who briefly dated Wilson while separated from Armstrong, expressed his remorse for the tragedy.

As the trial unfolds, the question remains: Did jealousy lead to the murder of Anna Moriah "Mo" Wilson?