Rapper Sues California Prison System Over Stabbing Incident

April 15, 2026 · Ivaton Pendale

Rapper Tory Lanez has launched a $100 million lawsuit against California’s Department of Corrections after a brutal stabbing attack whilst imprisoned at the California Correctional Institute in Tehachapi last May. The musician, born Daystar Peterson and currently serving a 10-year prison term for the 2020 shooting of 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 respondents, alleging negligence in housing decisions and a delayed response to the violence.

The May 2025 Attack 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 murder in the second degree, launched an unprovoked attack that left the rapper fighting for his life. Peterson sustained a collapsed lung alongside several stab injuries across his back, torso, and head—injuries severe enough to warrant emergency hospitalisation. The attack raised serious questions about prison security protocols and classification systems for inmates, particularly given the volatile circumstances of housing two inmates with such starkly different profiles and threat levels.

Following his recovery, Peterson was transferred to San Luis Obispo County’s California Men’s Colony, constituting another stage in his incarceration experience. The lawsuit further contends that during this relocation, Peterson did not regain his belongings from Tehachapi, including songbooks containing lyrics to unreleased music—a loss that intensifies the psychological and physical harm of the attack. Notably, despite the gravity of the incident, Casio was not prosecuted in connection with the knife attack, a detail the lawsuit highlights as part of institutional breakdowns within the prison service.

  • Casio struck Peterson 16 times during the unprovoked incident
  • Peterson hospitalised with punctured lung and numerous injuries
  • Moved to California Men’s Colony upon recovery
  • Personal belongings, including songbooks, never recovered from Tehachapi

Claims of Negligence and Systemic Failure

Housing Decisions and Safety Issues

At the heart of Peterson’s lawsuit lies a fundamental challenge of the Department of Corrections’ decision-making concerning prisoner accommodation placements. The legal filing contends that housing Peterson alongside Santino Casio—a lifer incarcerated for murder in the second degree—represented a severe breakdown in risk evaluation and inmate classification. The lawsuit maintains that the department “knew or should have been known” to identify the inherent risk in this arrangement. Peterson’s high-profile celebrity status, the suit maintains, made him an clear target inside the correctional environment, making the housing decision not simply negligent but callously indifferent to his safety and wellbeing.

The lawsuit highlights that such accommodation determinations demand thorough evaluation of detainee profiles, threat levels, and underlying reasons for violence. By failing to separate Peterson from Casio, prison administrators purportedly showed a institutional indifference for basic safety protocols that ought to regulate California’s detention centres. This failure of duty, the legal team maintains, directly precipitated the conditions under which the stabbing took place, 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 primary accommodation decision, the lawsuit challenges correctional officers’ response during the actual assault. According to the complaint, correctional officers were slow to intervene when Casio initiated the assault, permitting violence to continue unabated. The lawsuit specifically criticises the failure to deploy non-lethal devices 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 ongoing stabbing attack suggests either inadequate training, inadequate staffing, or a troubling disregard for prisoner safety—each possibility casting doubt on institutional competence.

The guards’ actions during the crucial minutes of the attack prompts inquiry into emergency procedures and staff preparedness within California’s prison system. Typical prison protocols generally require rapid response to violent incidents, yet the lawsuit contends this incident significantly departed from such protocols. The aggregate consequence of slow response times and the absence of suitable tactical response 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 demanding hospital treatment.

The Expanded Context of Lanez’s Imprisonment

Tory Lanez’s ongoing incarceration originates from a high-profile 2020 shooting incident involving rap artist Megan Thee Stallion. The confrontation, which occurred during the 2020 summer months, led to Peterson shooting Stallion in the foot. After a prolonged court proceedings, he was found guilty in December 2022 on several firearms charges, such as assault using a firearm, and subsequently sentenced to a decade in prison. This conviction marked a significant moment in hip-hop, drawing extensive press coverage and sparking considerable debate within the music industry concerning responsibility and the circumstances surrounding the occurrence.

Peterson’s ongoing litigation have continued throughout his incarceration, with his attorneys lodging an appeal challenging the conviction and sentence. However, in November 2025, a three-judge panel denied his appeal and confirmed the original 10-year sentence, effectively closing what many anticipated as an route to freedom or sentence reduction. This rejection came roughly six months after the stabbing attack at Tehachapi, meaning Peterson was contending with both the psychological and physical aftermath of the prison attack whilst simultaneously processing the disappointment of his unsuccessful appellate challenge. The confluence of these events has significantly complicated his situation in 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

Legal Claims and Compensation Requested

Tory Lanez’s legal claim against the California Department of Corrections pursues $100 million in financial restitution, constituting one of the largest claims filed against the state’s correctional system in recent times. 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 correctional management and safety measures directly contributed to the extent of Peterson’s injuries during the stabbing incident in May 2025. The significant financial award reflects both the bodily harm sustained and the mental distress of the unprovoked assault.

Central to the lawsuit’s arguments is the allegation that prison authorities made a dangerously inadequate choice in placing Peterson with fellow inmate Santino Casio, who was serving a life term for murder in the second degree. The court documents asserts that the correctional department either was aware or ought to have recognised that this cell assignment posed a significant risk to Peterson, particularly given his prominent inmate status within the facility. Furthermore, the lawsuit criticises the actions of security personnel, contending that guards failed to employ proper emergency procedures such as flash grenades to stop Casio’s attack. Notably, Casio was not prosecuted with the assault despite inflicting sixteen wounds on Peterson.

  • Department of Corrections failed to prevent identified high-risk inmate pairing
  • Celebrity status rendered Peterson an identifiable target for attack
  • Security personnel delayed response to stabbing emergency
  • Prison did not use flash grenades or other containment measures
  • Peterson’s belongings, such as unreleased songbooks, remain missing