Rapper Sues California Prison System Over Stabbing Incident

April 15, 2026 · Davon Ranwick

Rapper Tory Lanez has launched a $100 million legal action against California’s Department of Corrections 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 sentence for the 2020 shooting of Megan Thee Stallion, was stabbed 16 times by prison inmate Santino Casio in what the lawsuit describes as an “unprovoked dangerous assault.” The assault 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 defendants, alleging carelessness regarding inmate placement 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 serving a life sentence for second-degree murder, launched an unprovoked attack that left the rapper struggling to survive. Peterson sustained a punctured 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 volatile circumstances of housing two inmates with such markedly different profiles and threat levels.

Following his return to health, Peterson was relocated to San Luis Obispo County’s California Men’s Colony, constituting another stage in his prison ordeal. The lawsuit further alleges that during this transfer, Peterson never recovered his personal possessions from Tehachapi, including songbooks containing lyrics to unreleased music—a loss that exacerbates the physical and emotional trauma of the attack. Notably, despite the seriousness of the assault, Casio was not held accountable in connection with the knife attack, a detail the lawsuit underscores as part of systemic failures within the Department of Corrections.

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

Allegations of Negligence, and Institutional Failure

Housing Options and Security Concerns

At the core of Peterson’s lawsuit lies a fundamental challenge of the Department of Corrections’ decision-making regarding prisoner accommodation placements. The legal filing contends that housing Peterson with Santino Casio—a lifer serving time for murder in the second degree—constituted a catastrophic failure in risk assessment and prisoner classification. The lawsuit argues that the department “ought to have been aware” to recognise the inherent risk in this arrangement. Peterson’s prominent public status, the suit maintains, rendered him an obvious target within the prison environment, making the accommodation choice not merely negligent but recklessly indifferent to his safety and wellbeing.

The lawsuit highlights that such placement choices necessitate close examination of detainee profiles, risk assessments, and potential motivations for violence. By neglecting to isolate Peterson from Casio, facility management allegedly demonstrated a widespread neglect for fundamental security procedures that must oversee California’s prison system. This negligence, the legal team argues, substantially contributed to the conditions under which the stabbing took place, transforming what should have been preventable violence into an wholly predictable consequence of systemic failure and inadequate protective measures.

Response and Security Conduct

Beyond the primary accommodation decision, the lawsuit targets correctional officers’ response during the incident of violence. According to the filing, correctional officers delayed their intervention when Casio initiated the assault, enabling the situation to worsen. The lawsuit directly challenges the failure to employ flash grenades or other non-lethal tactical measures that might have halted the assault before Peterson suffered his worst injuries. This alleged slow reaction to an ongoing stabbing attack suggests either insufficient training, understaffing, or a troubling neglect of inmate wellbeing—each possibility casting doubt on institutional competence.

The guards’ actions during the crucial minutes of the attack raises questions about emergency protocols and personnel readiness within California’s prison system. Standard correctional procedures generally require swift action to acts of violence, yet the lawsuit indicates this incident deviated significantly from such protocols. The combined impact of slow response times and the failure to implement appropriate tactical intervention 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 life-threatening emergency demanding hospital treatment.

The Expanded Context of Lanez’s Incarceration

Tory Lanez’s ongoing incarceration stems from a high-profile shooting event in 2020 involving rap artist Megan Thee Stallion. The altercation, which took place in the summer of 2020, resulted in Peterson shooting Stallion in the foot. After a lengthy legal process, he was convicted in December 2022 on multiple gun-related charges, including assault using a firearm, and thereafter given a decade in prison. This conviction represented a significant moment in hip-hop, attracting extensive press coverage and sparking substantial discussion within the music industry concerning responsibility and the circumstances surrounding the incident.

Peterson’s legal battles have continued throughout his incarceration, with his defence counsel filing an appeal challenging the conviction and sentence. However, in November 2025, a panel of three judges denied his appeal and upheld the original 10-year sentence, effectively closing what many anticipated as an path to release or sentence reduction. 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 whilst also processing the disappointment of his failed appellate challenge. The combination of these events has significantly complicated his situation in 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

Legal Actions and Compensation Requested

Tory Lanez’s legal claim against the California Department of Corrections demands $100 million in financial restitution, representing one of the most significant claims filed against the state’s correctional system in recent times. The court filing names the Department of Corrections as the primary defendant, alongside the warden and correctional officers stationed at the California Correctional Institute in Tehachapi. The lawsuit argues that systemic failures in prison management and security protocols directly contributed to the seriousness of Peterson’s injuries during the May 2025 stabbing incident. The significant financial award reflects both the bodily harm sustained and the mental distress of the unprovoked assault.

Central to the lawsuit’s claims is the assertion that prison authorities made a catastrophically poor choice in placing Peterson with fellow inmate Santino Casio, who was completing a life term for murder in the second degree. The legal filing contends that the correctional department either knew or should have known that this cell assignment posed a significant risk to Peterson, particularly given his prominent inmate standing within the prison. Furthermore, the lawsuit criticises the response of correctional staff, arguing that guards failed to employ proper emergency procedures such as stun grenades to stop Casio’s assault. Notably, Casio was not prosecuted with the stabbing despite inflicting sixteen wounds on Peterson.

  • Correctional Department failed to prevent known dangerous inmate pairing
  • Celebrity status rendered Peterson an identifiable target for attack
  • Security personnel were slow to respond to stabbing emergency
  • Prison did not use flash grenades or other containment measures
  • Peterson’s belongings, including unreleased songbooks, remain missing