Rapper Sues California Prison System Over Stabbing Incident

April 15, 2026 · Shalen Calwick

Rapper Tory Lanez has launched a $100 million lawsuit against California’s Correctional Department after a brutal stabbing attack whilst incarcerated at the California Correctional Institute in Tehachapi in May. The artist, born Daystar Peterson and currently serving a 10-year prison term for the 2020 shooting of Megan Thee Stallion, was stabbed 16 times by fellow inmate Santino Casio in what the lawsuit characterises as an “unprovoked dangerous assault.” The attack left Peterson hospitalised with a punctured lung and multiple stab wounds to his back, torso, and head. The lawsuit names the Department of Corrections, the prison warden, and guards as respondents, alleging carelessness regarding inmate placement and a delayed response to the violence.

The May 2025 Attack and Its Aftermath

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 murder in the second degree, launched an unprovoked attack that left the rapper fighting for his life. Peterson sustained a collapsed lung alongside multiple stab wounds across his back, torso, and head—injuries severe enough to warrant immediate 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 starkly different profiles and threat levels.

Following his return to health, Peterson was transferred to San Luis Obispo County’s California Men’s Colony, marking another chapter in his incarceration experience. The lawsuit further contends that during this transfer, Peterson failed to retrieve his belongings from Tehachapi, including songbooks with lyrics to unpublished songs—a loss that exacerbates the emotional and physical suffering of the assault. Notably, despite the gravity of the incident, Casio was not charged in connection with the stabbing, a detail the lawsuit emphasises as part of institutional breakdowns within the Department of Corrections.

  • Casio struck Peterson 16 times during the unprovoked incident
  • Peterson hospitalised with punctured lung and numerous injuries
  • Moved to California Men’s Colony after recovery
  • Personal possessions, including songbooks, remained missing from Tehachapi

Accusations of Negligence, and Institutional Failure

Accommodation Choices and Security Worries

At the heart of Peterson’s lawsuit sits a core challenge of the Corrections Department’s decision process concerning prisoner accommodation placements. The legal filing contends that placing Peterson with Santino Casio—a life-sentence prisoner serving time for second-degree murder—constituted a catastrophic failure in risk evaluation and inmate classification. The lawsuit argues that the department “knew or should have been known” to recognise the danger inherent in this arrangement. Peterson’s prominent public profile, the suit maintains, made him an obvious target inside the correctional facility, rendering the housing decision not merely negligent but callously indifferent to his safety and wellbeing.

The lawsuit emphasises that such placement choices require careful consideration of detainee profiles, security classifications, and underlying reasons for violence. By failing to separate Peterson from Casio, facility management reportedly displayed a widespread neglect for basic safety protocols that should govern California’s prison system. This breach of care, the attorneys maintains, immediately caused the conditions under which the stabbing occurred, transforming what should have been preventable violence into an entirely foreseeable consequence of institutional mismanagement and inadequate protective measures.

Response and Security Behaviour

Beyond the primary accommodation decision, the lawsuit takes aim at correctional officers’ response during the actual assault. According to the filing, correctional officers delayed their intervention when Casio carried out his attack, permitting violence to continue unabated. The lawsuit specifically criticises the failure to employ flash grenades or other non-lethal intervention methods that might have stopped the attack before Peterson suffered his worst injuries. This alleged delay in response to an active stabbing incident suggests either poor preparation, understaffing, or a troubling indifference to inmate welfare—each possibility undermining institutional competence.

The guards’ conduct during the critical minutes of the attack calls into question emergency protocols and personnel readiness within California’s prison system. Conventional correctional practices typically mandate rapid response to acts of violence, yet the lawsuit indicates this incident departed substantially from such protocols. The cumulative effect of slow response times and the absence of suitable tactical response meant that Peterson’s 16 stab wounds were inflicted with scant active defence from security personnel, changing what could have been a serious incident into a critical emergency requiring hospitalisation.

The Wider Context of Lanez’s Incarceration

Tory Lanez’s current imprisonment stems from a widely publicized 2020 shooting incident featuring rap artist Megan Thee Stallion. The confrontation, which occurred during the 2020 summer months, resulted in Peterson shooting Stallion in the foot. Following a prolonged court proceedings, he was found guilty in December 2022 on multiple gun-related charges, such as assault with a firearm, and thereafter given a decade in prison. This guilty verdict represented a significant moment in hip-hop, attracting extensive press coverage and igniting considerable debate across the music sector regarding responsibility and the events related to the occurrence.

Peterson’s court disputes have persisted during his incarceration, with his attorneys lodging an appeal challenging the conviction and sentence. However, in November 2025, a three-judge panel rejected his appeal and confirmed the original 10-year sentence, effectively closing what many anticipated as an path to release or reduction in sentence. This denial came approximately six months after the stabbing incident at Tehachapi, meaning Peterson was contending with both the psychological and physical aftermath of the prison attack whilst whilst also processing the disappointment of his unsuccessful appeal. The confluence of these events has significantly complicated his circumstances within the California correctional 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 legal claim against the California Department of Corrections seeks $100 million in damages, amounting to one of the most significant cases filed against the state’s correctional system in the past several years. The legal action names the Department of Corrections as the main defendant, together with the warden and prison staff stationed at the California Correctional Institute in Tehachapi. The lawsuit contends that institutional failures in facility operations and security protocols led to the severity of Peterson’s injuries during the May 2025 stabbing incident. The large compensation amount reflects both the bodily harm sustained and the psychological impact of the unprovoked attack.

Central to the lawsuit’s arguments is the assertion that correctional officials made a dangerously inadequate decision in placing Peterson with fellow inmate Santino Casio, who was serving a life sentence for murder in the second degree. The legal filing asserts that the Department of Corrections either was aware or should have known that this housing arrangement posed a significant risk to Peterson, especially given his prominent inmate standing within the prison. Furthermore, the lawsuit challenges the response of security personnel, contending that guards failed to employ appropriate emergency measures such as stun grenades to halt Casio’s assault. Notably, Casio was never charged with the stabbing despite causing 16 injuries on Peterson.

  • Correctional Department did not stop known dangerous inmate pairing
  • Celebrity status made Peterson a recognisable target for violence
  • Security personnel delayed response to stabbing emergency
  • Prison did not use flash grenades or other containment measures
  • Peterson’s personal possessions, including unreleased songbooks, are unaccounted for