(NewsNation) — Colin Strickland, who had been in a relationship with Kaitlin Armstrong, a yoga instructor accused of shooting and killing professional cyclist Anna Moriah “Mo” Wilson, will continue testifying on the fourth day of the trial Monday.

Wilson was found unconscious with a gunshot wound to the head May 11, 2022, at a friend’s Austin, Texas home.

Armstrong, 35, had allegedly been involved in a love triangle between herself, Strickland and Wilson. In court Friday, Strickland testified that his “on-again-off-again” relationship with Armstrong had been  “tumultuous,” adding that he was uncertain if he wanted to pursue something more long-term, and shared his memories from the night Wilson was killed.

Also last week, Wilson’s brother, friend, police and crime scene specialists also testified.

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