Psychological & Behavioral Intelligence

John Harrigan, Gary Melke, and others Kidnapped by Mitchell Sims, Michael Carlton Sims, and others, Glendale, California, United States

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Human-reviewed analysis

Psychological & Behavioral Intelligence

This source-based behavioral analysis does not establish a clinical diagnosis, motive, or legal finding.

Case Overview

The source portrays Sims and Paget as a criminal couple whose relationship developed within a context of substance use, prior violence, deception, and shared attraction to risky conduct. These are behavioral descriptions from a true-crime report, not independent clinical findings. The source does not establish a professional diagnosis for either person.

Relationship Dynamics

Sims and Paget were described as romantic partners who shared alcohol and marijuana use and reportedly supported or accepted escalating criminal behavior. Sims is portrayed as directing much of the planning and violence, while Paget is described as frightened at times but also willing to accompany him and participate in the flight and robberies. The source presents their bond as mutually reinforcing, but the precise division of responsibility for each act remains partly disputed.

Escalation Summary

The reported pathway moved from Sims's workplace grievance and anger to retaliation, armed attacks, flight, and increasingly severe violence. Prior alleged deception and retaliatory planning, substance use, and the couple's shared conduct were presented as contextual factors before the focal homicides. Afterward, concealment, interstate flight, assumed identities, and conflicting accounts complicated the investigation.

Observed Patterns and Case-Specific Context

Each entry separates the reported behavior or state from the analytical strength of the available narration.

Behavior / construct	Person / subject	Detailed case context	Evidence
Anger or resentment Emotional state	Mitchell Sims Offender	Sims's reported response to the bonus dispute was disproportionate to the immediate financial disagreement. His anger was expressed through dominance claims and an attempted collective walkout. The subsequent revenge framing suggests that the grievance remained salient after he left the job. Context or trigger: A bonus reportedly arrived at approximately half the amount Sims expected, followed by a failed attempt to persuade coworkers to leave. Reported expression: The narration describes Sims losing his temper, asserting control over the workplace, and leaving after employees refused to follow him. The source then links this grievance to a stated desire for revenge against the employer.	Narrative-supported psychological state Confidence: High
Deception or concealment Behavioral pattern	Mitchell Sims Offender	The reported wiping of surfaces and use of an assumed motel identity indicate concealment behavior after the crimes. Investigators nevertheless recovered fingerprints and located the stolen truck. Sims's interview statement also presented a partial account that investigators treated as incriminating. Context or trigger: After the reported Hanahan and Glendale crimes, Sims allegedly attempted to avoid identification and detection. Reported expression: The source reports wiped surfaces, travel under an assumed name, and Sims's reported attempt to explain Harrigan's killing during interrogation.	Explicitly reported Confidence: High
Premeditation and planning Planning or impulsivity	Mitchell Sims Offender	The reported conduct contains more than one example of advance planning and instrumental deception. The prior staged-shooting account, if accurately reported, is especially relevant because it predates the focal killings and shows an alleged pattern of using others and false narratives to pursue personal objectives. Context or trigger: The source describes earlier planning against an employer and a prior staged shooting intended to implicate another man. Reported expression: Sims reportedly developed a plan to mobilize employees, later planned attacks against the pizza chain, and previously arranged for a friend to shoot him so he could blame a soldier's husband.	Narrative-supported psychological state Confidence: Moderate
Infidelity or competing attachment Relationship stressor	Mitchell Sims Offender	The narrated relationship history places Sims's intimate life within repeated overlapping or competing attachments. The earlier affair was followed by alleged retaliatory planning against the woman's husband. This is relevant relationship context, although the source does not establish that jealousy caused the later pizza-chain attacks. Context or trigger: The source reports that Sims was married but pursued other women, including an affair with another soldier's wife. Reported expression: Sims reportedly maintained or pursued extramarital relationships and later left his family before forming a relationship with Paget.	Narrative-supported psychological state Confidence: Moderate
Prior interpersonal violence Prior violence	Mitchell Sims and Ruby Paget	The report presents extensive prior exposure to violence in both biographies. For Sims, the narration links abuse, shame, detachment, and later substance use; for Paget, it describes childhood domestic violence and repeated abusive boyfriends. These histories are contextual vulnerabilities and do not by themselves prove causation or predict criminal behavior. Context or trigger: The source reports histories of childhood abuse, abusive relationships, and aggressive conduct before the focal crimes. Reported expression: Sims was described as having experienced severe childhood sexual abuse and Paget as having witnessed and experienced repeated physical abuse.	Narrative-supported psychological state Confidence: Moderate
Dyadic reinforcement Offender behavior	Mitchell Sims and Ruby Paget	The source portrays the relationship as one in which both partners reinforced a dangerous shared environment. Paget's reported decision to go to California after Sims disclosed his situation is presented as evidence of continued alignment. The precise motivations and degree of coercion remain disputed, especially because Paget later claimed Sims threatened her. Context or trigger: The couple reportedly shared substance use and an attraction to risky, violent conduct after beginning their relationship. Reported expression: Paget allegedly remained with Sims after learning he was wanted for murder and accompanied him across the country during further crimes.	Analytical inference Confidence: Moderate
Staging or evidence concealment Post-offense behavior	Mitchell Sims and Ruby Paget	The reported cleanup reflects an alleged effort to alter the evidentiary scene. The incomplete concealment left recoverable materials that investigators used to identify Sims. The transcript does not establish which person performed each cleanup action. Context or trigger: After Harrigan's reported killing, the perpetrators allegedly attempted to prevent investigators from finding identifying evidence. Reported expression: The motel surfaces were reportedly wiped, but a toilet roll and yellow pages retained fingerprints attributed to Sims.	Explicitly reported Confidence: High

Behavioral Escalation Pathway

Select a stage to expand it; scroll horizontally to follow the full sequence.

Narrative sequence

1 Workplace grievance Mitchell Sims Offender Anger or resentment Narrative-supported psychological state

The source begins with Sims's anger after receiving a smaller bonus than expected. He reportedly challenged his manager, attempted to recruit coworkers into a walkout, and left when they did not follow.

Narrative-supported psychological state · High confidence

2 Relationship and substance-use context Mitchell Sims and Ruby Paget Narrative-supported psychological state

Sims reportedly moved to Hanahan and formed a relationship with Paget. The source describes shared alcohol and marijuana use and presents the couple as connected by a common tolerance for risky behavior.

Narrative-supported psychological state · Moderate confidence

3 Retaliatory planning Mitchell Sims Offender Premeditation and planning Narrative-supported psychological state

The narration describes Sims as returning to the pizza chain while expressing revenge. It also recounts an earlier alleged scheme involving a staged shooting and an attempt to blame another man.

Narrative-supported psychological state · Moderate confidence

4 Hanahan attack Mitchell Sims Offender Instrumental aggression Narrative-supported psychological state

Sims reportedly used a weapon and restraints during a robbery at the Hanahan pizzeria. Zarr died and Melke later died after sustaining multiple gunshot wounds.

Narrative-supported psychological state · High confidence

5 Flight with Paget Mitchell Sims and Ruby Paget Dyadic reinforcement Analytical inference

After police began searching for Sims, the source says Paget knew he was wanted and nevertheless agreed to travel with him to California. Their continued movement together preceded the Glendale attack.

Analytical inference · Moderate confidence

6 Glendale homicide and hostage-taking Mitchell Sims and Ruby Paget Premeditation and planning Narrative-supported psychological state

The couple allegedly abducted Harrigan at a motel, killed him, stole his truck, and went to his workplace. They then robbed the store and restrained Russell and Lewis in a freezer.

Narrative-supported psychological state · High confidence

7 Concealment and interstate evasion Mitchell Sims and Ruby Paget Detection avoidance or evasion Explicitly reported

The source reports that Sims and Paget used an assumed name in Las Vegas, spent money and drugs while hiding, and were eventually located after the stolen truck and a public appeal generated a tip.

Explicitly reported · High confidence

8 Arrest and conflicting accounts Mitchell Sims and Ruby Paget Deception or concealment Narrative-supported psychological state

After arrest, Sims reportedly made an incriminating statement about killing Harrigan, while Paget denied or minimized her involvement and blamed Sims. The differing accounts remained part of the prosecution narrative.

Narrative-supported psychological state · Moderate confidence

Arrows show the sequence described in the source narrative; they do not prove that one psychological state caused the next event.

Source Limits and Cautions

The source is a narrated video report containing commentary, reconstructed dialogue, and psychological interpretations that are not independently documented in the transcript. Several statements are allegations or retrospective descriptions, and the exact dates, evidentiary record, and current appellate status are incomplete. No professional diagnosis is explicitly reported.

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