Justin Rosen Allegedly Murdered by Teresa Perez, Denver, Colorado, United States
This source-based behavioral analysis does not establish a clinical diagnosis, motive, or legal finding.
The documentary portrays Teresa Perez's relationship history through repeated losses, unstable attachments, material dependency, secrecy, and escalating reactions to perceived rejection. It also describes Justin Rosen as maintaining a concealed affair while protecting his marriage, reputation, and livelihood. These are source-grounded behavioral themes, not clinical determinations; the source does not document a professional diagnosis of Teresa.
The reported affair combined emotional attachment with housing, cash, status, and promises of a future marriage. Teresa reportedly wanted Rosen to leave his wife and experienced the continuation of the affair as insufficient, while Rosen reportedly wanted the relationship concealed and eventually ended it. The imbalance between Teresa's expectations and Rosen's decisions intensified after illness, exposure, and loss of material support.
The reported pathway moved from early abandonment and unstable relationships to material and emotional dependency, a concealed affair, dissatisfaction with being the hidden partner, breakup and exposure, alleged stalking and threats, and an armed confrontation that killed Rosen and Perez and injured an officer.
Each entry separates the reported behavior or state from the analytical strength of the available narration.
| Behavior / construct | Person / subject | Detailed case context | Evidence |
|---|---|---|---|
| Cumulative loss Loss or threat | Teresa Perez SuspectLover of victim |
Teresa reportedly experienced several major caregiving disruptions before adulthood. The source presents these losses as a background condition that shaped her later search for stability and attachment. This does not establish a clinical disorder or direct causation. Context or trigger: Parental divorce, maternal incapacity, repeated foster placements, and later rejection by her father and stepmother. Reported expression: The documentary describes repeated childhood disruptions and perceived rejection before Teresa's adult relationships. |
Narrative-supported psychological state Confidence: High |
| Separation or abandonment threat Loss or threat | Teresa Perez SuspectLover of victim |
The documentary repeatedly links Teresa's relationship behavior to fear of being dismissed or abandoned. In the Rosen affair, the threat became especially acute when he refused to leave his marriage and later ended the relationship. The source frames this as a recurring relational trigger, not a proven psychological mechanism. Context or trigger: Her father repeatedly sided with her stepmother, and later romantic partners left or failed to meet her expectations. Reported expression: The report describes intense reactions to rejection and efforts to prevent partners from leaving. |
Narrative-supported psychological state Confidence: High |
| Financial strain or dependence Relationship stressor | Teresa Perez SuspectLover of victim |
Material security was repeatedly described as part of Teresa's relationship choices. Her dependence on Rosen reportedly extended beyond romance to housing and daily expenses. When that support ended, the source describes a sharp increase in perceived instability and desperation. Context or trigger: Dissatisfaction with Bob Costello's income, gambling debt in her fourth marriage, and reliance on Rosen's cash, apartment, and expenses. Reported expression: The report portrays Teresa as pursuing financially powerful partners and fearing the loss of housing, a car, and money after Rosen withdrew support. |
Narrative-supported psychological state Confidence: High |
| Infidelity or competing attachment Relationship stressor | Teresa Perez and Justin Rosen |
The affair created a competing attachment alongside Rosen's marriage. Teresa reportedly treated Rosen as a future primary partner, while Rosen continued to protect his marriage and public position. This structural mismatch contributed to chronic uncertainty and conflict. Context or trigger: Both were married when their workplace association reportedly developed into a long-term affair. Reported expression: They maintained a concealed relationship in which Teresa expected Rosen eventually to leave his wife. |
Explicitly reported Confidence: High |
| Deception or concealment Behavioral pattern | Teresa Perez and Justin Rosen |
Concealment was central to the reported relationship structure. Teresa's daughter said Teresa kept the relationship secret, while the documentary says Rosen used cash payments to avoid documentation. When the affair was exposed to Rosen's wife, the relationship entered a more openly adversarial phase. Context or trigger: The affair was hidden from spouses and Rosen reportedly paid rent and expenses in cash to avoid a money trail. Reported expression: The relationship operated through secrecy, a separate apartment, cash payments, and concealment from family and spouses. |
Explicitly reported Confidence: High |
| Chronic interpersonal conflict Relationship stressor | Teresa Perez SuspectLover of victim |
The source depicts conflict as a repeated feature of Teresa's intimate relationships rather than an isolated event. It reports physical conduct in her second marriage and escalating disputes with Rosen over his wife and promises. The pattern is descriptive and does not determine responsibility for every conflict. Context or trigger: Repeated troubled partnerships, physical conflict in a marriage, dissatisfaction with the hidden affair, and disputes over Rosen's commitment. Reported expression: The documentary describes recurring instability, arguments, pressure, and conflict across several relationships. |
Narrative-supported psychological state Confidence: Moderate |
| Premeditation and planning Planning or impulsivity | Teresa Perez SuspectLover of victim |
The reported conduct involved preparation and a selected opportunity rather than only a spontaneous verbal argument. Teresa's waiting for Rosen and use of a firearm indicate deliberate actions before the shooting episode. The source does not establish her precise intention before she arrived. Context or trigger: The planned final visit to Rosen after the affair ended and financial support stopped. Reported expression: The report says Teresa waited for Rosen, brought a firearm, compelled him into a vehicle, and took him toward a confrontation. |
Analytical inference Confidence: Moderate |
| Impulsive aggression Planning or impulsivity | Teresa Perez SuspectLover of victim |
The shooting is described as a rapid escalation within a highly charged encounter. The firearm use followed reported threats, fear, and accusations during the car ride. Although the event may also have involved planning, the source does not permit a precise assessment of the balance between preparation and impulsive reaction. Context or trigger: The confrontation after Rosen reportedly drove toward police and attempted to escape. Reported expression: The source says Teresa fired repeatedly at Rosen during the police-station confrontation. |
Analytical inference Confidence: Moderate |
| Suicidal ideation or behavior Suicidal behavior | Teresa Perez SuspectLover of victim |
The source supports concern about suicidal intent or behavior but does not clearly establish whether Teresa fired at herself or was killed by police fire. The note and gun-to-head action are relevant indicators, while the reported mechanics of her death remain disputed or incomplete. No clinical evaluation is provided. Context or trigger: The end of the affair, loss of housing and financial support, and the fatal police confrontation. Reported expression: The report says Teresa put the gun to her head and left a note stating that she felt she had already died. |
Explicitly reported Confidence: Moderate |
Select a stage to expand it; scroll horizontally to follow the full sequence.
The documentary reports parental divorce, maternal incapacity, foster care, and later rejection by her father and stepmother. These events are presented as the background to Teresa's later attachment concerns, although the source does not prove a causal relationship.
As a homeless teenager and young adult, Teresa reportedly sought older partners who could provide shelter, family stability, or material security. Her relationships with Bob Costello and later husbands are described as attempts to create a lasting attachment.
Dissatisfaction with income, gambling, debt, and repeated marital breakdowns reportedly increased Teresa's dependence on relationships for stability. The source describes this as a recurring pressure before she met Rosen.
Their workplace connection reportedly became a secret affair while both were married. Teresa expected Rosen to become her primary partner, while Rosen maintained his marriage and public identity.
Rosen's cancer diagnosis and decision to remain married reportedly ended the future Teresa believed had been promised. The loss of the affair also threatened her housing, vehicle, and cash support.
The source reports contact with Rosen's wife, attempts to break up the marriage, alleged stalking, threats, and increasing danger after Rosen severed contact. These reported behaviors mark a transition from relationship conflict to safety risk.
On October 3, 2003, Teresa reportedly waited for Rosen, held him at gunpoint during a car ride, and confronted him near a Denver police station. The reported shooting killed Rosen, fatally ended Teresa's life during the police response, and injured an officer.
A note reportedly found in Teresa's car expressed severe inner distress and addressed her children. The source also says she put the gun to her head, but it is unclear whether she attempted suicide or was killed by police fire.
Arrows show the sequence described in the source narrative; they do not prove that one psychological state caused the next event.
The source is a documentary-style narrative using interviews, commentary, and reconstructed chronology. It does not provide complete police, medical, forensic, or court records, and several psychological explanations are interpretive rather than clinically documented. The exact sequence of the shootings and Perez's death remains unclear.