After opening statements, witness testimony began in Kaitlyn Armstrong's murder trial.

Mo Wilson's brother, Matt Wilson, answered questions about Wilson's professional cycling and what type of person she was. Wilson testified that Mo Wilson and Colin Strickland were not having a romantic relationship when she was killed. The woman that Mo Wilson stayed with in Austin and whose apartment in which she was killed, Caitlin Cash, said the same thing when asked about the Wilson / Strickland relationship.

Caitlin Cash also testified on how she found Mo Wilson on the floor of her apartment bathroom covered in blood. The state also played the call Cash made to 911. Cash cried while the recording of her call was played in court. 

During ADA Ricky Jones' opening statement, he said Armstrong knew that Wilson was in town because the day before the shooting she looked Wilson up four times on a phone app called Strava that showed where Wilson planned to race and gave the address of the house where Wilson was staying.

Jones also pointed out that Armstrong had used Colin Strickland's login information on her cell phone and looked up pictures of Mo Wilson.

Joining Nancy Grace Today:

• Alan Bennett – Former Assistant District Attorney, Partner at Gunter, Bennett, and Anthes
• Dr. Bethany Marshall – Psychoanalyst (Beverly Hills); Twitter: @DrBethanyLive/ Instagram & TikTok: drbethanymarshall  
• Irv Brandt – Senior Inspector, US Marshals Service International Investigations Branch; Chief Inspector, DOJ Office of International Affairs, US Embassy Kingston, Jamaica; Author: “SOLO SHOT: CURSE OF THE BLUE STONE” – AVAILABLE ON AMAZON IN JANUARY; ALSO “FLYING SOLO: Top of the World;” Twitter: @JackSoloAuthor 
• Joe Scott Morgan – Professor of Forensics: Jacksonville State University, Author, “Blood Beneath My Feet,” and Host: “Body Bags with Joseph Scott Morgan;” Twitter: @JoScottForensic
• Tony Plohetski -  Investigative Reporter, Austin American-Statesman and KVUE; Twitter: @tplohetski