Rapper Sues California Prison System Over Stabbing Incident

April 15, 2026 · Elden Halwood

Rapper Tory Lanez has filed a $100 million lawsuit against California’s Correctional Department after a brutal stabbing attack whilst imprisoned at the California Correctional Institute in Tehachapi in May. The artist, born Daystar Peterson and presently completing a 10-year prison term for the 2020 shooting incident involving Megan Thee Stallion, was struck 16 times with a blade by prison inmate Santino Casio in what the lawsuit describes as an “unprovoked life-threatening attack.” The attack left Peterson hospitalised with a collapsed lung and multiple stab wounds to his back, torso, and head. The lawsuit identifies the Department of Corrections, the facility warden, and guards as defendants, alleging carelessness regarding inmate placement and a slow reaction to the violence.

The May 2025 Incident and Its Consequences

The May 2025 stabbing incident at Tehachapi proved a watershed moment in Peterson’s incarceration. According to the lawsuit, fellow inmate Santino Casio, who was completing a life sentence for second-degree murder, launched an unprovoked attack that left the rapper fighting for his life. Peterson sustained a punctured lung alongside several stab injuries across his back, torso, and head—injuries serious enough to warrant emergency hospitalisation. The attack raised serious questions about prison security protocols and classification systems for inmates, particularly given the dangerous situation of housing two inmates with such markedly different profiles and threat levels.

Following his return to health, Peterson was transferred to San Luis Obispo County’s California Men’s Colony, constituting another stage in his prison ordeal. The lawsuit further contends that during this transfer, Peterson never recovered his personal items from Tehachapi, including songbooks featuring lyrics to unreleased music—a loss that intensifies the psychological and physical harm of the attack. Notably, despite the severity of the attack, Casio was not charged in connection with the assault, a detail the lawsuit emphasises as part of institutional breakdowns within the Department of Corrections.

  • Casio stabbed Peterson 16 times during the unprovoked assault
  • Peterson taken to hospital with punctured lung and multiple wounds
  • Relocated to California Men’s Colony following recovery
  • Personal belongings, including songbooks, not recovered from Tehachapi

Allegations of Negligence and Organisational Breakdown

Housing Decisions and Security Worries

At the core of Peterson’s lawsuit lies a fundamental criticism of the Corrections Department’s decision-making regarding inmate housing assignments. The court document argues that placing Peterson alongside Santino Casio—a life-sentence prisoner serving time for murder in the second degree—represented a catastrophic failure in risk assessment and inmate classification. The lawsuit argues that the department “ought to have been aware” to identify the danger inherent in this arrangement. Peterson’s high-profile celebrity status, the suit maintains, rendered him an clear target within the prison facility, rendering the accommodation choice not merely negligent but callously indifferent to his safety and wellbeing.

The lawsuit highlights that such placement choices necessitate close examination of inmate backgrounds, security classifications, and underlying reasons for violence. By neglecting to isolate Peterson from Casio, facility management allegedly demonstrated a systemic disregard for basic safety protocols that ought to regulate California’s detention centres. This breach of care, the legal team contends, substantially contributed to the environment where the stabbing happened, converting what might have remained preventable violence into an wholly predictable consequence of institutional mismanagement and insufficient safety provisions.

Response and Security Conduct

Beyond the initial housing decision, the lawsuit takes aim at correctional officers’ response during the actual assault. According to the complaint, correctional officers were slow to intervene when Casio carried out his attack, allowing the violence to escalate unchecked. The lawsuit explicitly condemns the failure to employ flash grenades or other non-lethal intervention methods that might have halted the assault before Peterson suffered his worst injuries. This alleged sluggishness in responding to an active stabbing incident suggests either insufficient training, insufficient staffing, or a troubling neglect of inmate wellbeing—each possibility reflecting poorly on institutional competence.

The guards’ actions during the critical minutes of the attack raises questions about emergency procedures and personnel readiness within California’s prison system. Conventional correctional practices generally require immediate intervention to acts of violence, yet the lawsuit indicates this incident deviated significantly from such protocols. The cumulative effect of slow response times and the absence of proper tactical measures meant that Peterson’s 16 stab wounds were inflicted with minimal active resistance from security personnel, changing what could have been a grave occurrence into a critical emergency necessitating hospitalisation.

The Wider Context of Lanez’s Incarceration

Tory Lanez’s ongoing incarceration originates from a high-profile 2020 shooting incident featuring fellow rapper Megan Thee Stallion. The altercation, which occurred during the summer of 2020, led to Peterson shooting Stallion in her foot. After a lengthy legal process, he was convicted in December 2022 on several firearms charges, such as assault with a firearm, and subsequently sentenced to a decade in prison. This conviction marked a significant moment in hip-hop, attracting widespread media attention and sparking considerable debate across the music sector regarding responsibility and the events related to the occurrence.

Peterson’s legal battles have persisted during his incarceration, with his legal team filing an appeal challenging the conviction and sentence. However, in November 2025, a panel of three judges rejected his appeal and upheld the 10-year sentence originally imposed, effectively closing what many hoped would be an path to release or reduction in sentence. This rejection came roughly six months after the stabbing incident at Tehachapi, meaning Peterson was contending with both the psychological and physical aftermath of the prison attack whilst at the same time dealing with the frustration of his unsuccessful appellate challenge. The combination of these events has markedly worsened his experience within the California prison system.

Key Event Date
Shooting incident involving Megan Thee Stallion Summer 2020
Conviction on firearms charges December 2022
Stabbing incident at California Correctional Institute Tehachapi May 2025
Appeal denied by three-judge panel November 2025

Lawful Claims and Damages Claimed

Tory Lanez’s court action against the California Department of Corrections demands $100 million in damages, amounting to one of the largest suits filed against the state’s correctional system in recent years. The lawsuit names the Department of Corrections as the primary defendant, together with the warden and individual guards stationed at the California Correctional Institute in Tehachapi. The lawsuit contends that systemic failures in facility operations and security protocols directly contributed to the seriousness of Peterson’s injuries during the 2025 stabbing attack. The substantial compensation figure reflects both the bodily harm sustained and the emotional harm of the unprovoked incident.

Central to the lawsuit’s arguments is the assertion that prison authorities made a catastrophically poor decision in housing Peterson with fellow inmate Santino Casio, who was completing a life term for murder in the second degree. The court documents contends that the Department of Corrections either was aware or should have known that this housing arrangement posed a significant risk to Peterson, particularly given his prominent inmate status within the facility. Furthermore, the lawsuit criticises the actions of security personnel, arguing that officers did not use proper emergency procedures such as stun grenades to halt Casio’s assault. Notably, Casio was not prosecuted with the stabbing despite causing 16 injuries on Peterson.

  • Department of Corrections did not stop identified high-risk inmate pairing
  • Celebrity status rendered Peterson a recognisable target for violence
  • Security personnel were slow to respond to stabbing incident
  • Prison failed to employ flash grenades or other containment measures
  • Peterson’s personal possessions, including unreleased songbooks, remain missing