Anna Moria Wilson, known as Mo, a talented and ambitious professional cyclist, was murdered in May 2022 at her friend's house in Austin, Texas. The suspect, Caitlyn Mary Armstrong, driven by intense jealousy over Mo's friendship with her boyfriend Colin Trickland, tracked Mo via a cycling app and ultimately shot her multiple times. Caitlyn fled after the murder, underwent plastic surgery to change her appearance, and was captured months later in Costa Rica. She was extradited, escaped once more, but was recaptured. Caitlyn was convicted of first-degree murder and sentenced to 90 years in prison. The case highlights the deadly consequences of jealousy and lack of open communication in relationships.
Country: United States
State/Province: Texas, United States
City/Region: Austin
Incident Type: Murder
Relationship Status: Ex-partners
Relationship Duration: Approximately 1 month
Recorded context: Romantic-rival / love-triangle context
Reported initiator: Another person
Relationship timing: Before marriage / formal commitment
Incident Date: May 11, 2022
Primary reported outcome: Homicide
Reported self-harm outcome: No suicide or attempt reported
Reported sequence: Order not reported / unclear
Additional victims reported: 0
Relationship Origins:
Relationship Stages:
Contributing Factors:
Red Flags:
Motives:
Relationship Outcomes:
How the relationship or connection began.
Approximately 1 month
Important relationship phases recorded for this case.
Reported red flags or early concern points.
Contributing factors and possible motives from the available sources.
2022-05-11
Recorded relationship or case outcome.
English labels are shown first. Original-language titles are preserved for source verification.
Lucia Leona · Original language: English
Die Yoga Killerin… | Der Fall Kaitlin Armstrong
Jealousy
The case centers on intense jealousy by Caitlyn Armstrong over Mo's friendship and past relationship with Colin Trickland. Caitlyn's jealousy escalated to stalking and ultimately murder, reflecting a pattern of romantic rivalry and domestic conflict.
Police identified Caitlyn Armstrong as the suspect through surveillance footage and forensic evidence including shell casings and DNA on Mo's bicycle. Caitlyn fled multiple times, including international escape and plastic surgery to alter appearance. She was eventually captured, extradited, and convicted. The investigation highlighted the use of a tracking app abused by Caitlyn to monitor Mo and Colin.
Initial confusion due to Caitlyn's arrest on unrelated charges and release due to administrative errors. Uncertainty about the exact timeline of Mo and Colin's relationship and Caitlyn's knowledge of their contact.
Mo and Colin had a brief romantic relationship ending in late 2021, remaining friends thereafter. Colin resumed relationship with Caitlyn, who became jealous of Mo. Caitlyn tracked Mo via a cycling app and followed her to Austin. On May 11, 2022, Caitlyn shot Mo multiple times in her friend's house. Caitlyn fled, changed appearance, and was captured months later in Costa Rica. She escaped again but was recaptured and tried in Texas.
High risk due to stalking behavior, secretive communication, and escalating jealousy culminating in lethal violence.
Jealousy and lack of open communication can escalate to lethal violence. Stalking and secretive behaviors are critical early warning signs. Technology misuse for tracking can facilitate stalking. The importance of thorough police work and international cooperation in fugitive capture is highlighted.
Jealousy, secretive communication, message deletion, and stalking behaviors were early signals.
Surveillance video of black Jeep, shell casings at crime scene, DNA on bicycle, and tracking app misuse helped connect the case.
Forensic evidence including shell casings and DNA, surveillance footage, and digital tracking data were strongest.
Friend Cash found Mo dead and called emergency services; police and investigators provided statements; no other witness statements reported.
Follow-up reports revealed Caitlyn's flight, plastic surgery, and eventual capture, clarifying the suspect's identity and movements.
Exact details of Mo and Colin's relationship status at time of murder and Caitlyn's full motives remain partially unclear.