Rapper Sues California Prison System Over Stabbing Incident

April 15, 2026 · Kaara Kerland

Rapper Tory Lanez has filed a $100 million legal action against California’s Correctional Department following 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 incident involving Megan Thee Stallion, was struck 16 times with a blade by fellow inmate Santino Casio in what the lawsuit describes as an “unprovoked dangerous assault.” The assault left Peterson admitted to hospital with a punctured lung and numerous stabbing injuries to his back, torso, and head. The lawsuit identifies the Department of Corrections, the prison warden, and guards as defendants, alleging carelessness regarding inmate placement and a slow reaction to the violence.

The May 2025 Attack and Its Aftermath

The May 2025 stabbing incident at Tehachapi represented 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 assault 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 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 markedly different profiles and threat levels.

Following his recuperation, Peterson was moved to San Luis Obispo County’s California Men’s Colony, marking another chapter in his incarceration experience. The lawsuit additionally claims that during this transfer, Peterson did not regain his belongings from Tehachapi, including songbooks featuring lyrics to unreleased compositions—a loss that exacerbates the emotional and physical suffering of the incident. Notably, despite the seriousness of the assault, Casio was not held accountable in connection with the assault, a detail the lawsuit highlights as part of systemic shortcomings within the correctional system.

  • Casio struck Peterson 16 times during the unprovoked attack
  • Peterson admitted to hospital with collapsed lung and several lacerations
  • Relocated to California Men’s Colony after recovery
  • Personal possessions, including songbooks, remained missing from Tehachapi

Claims of Negligence and Systemic Failure

Housing Options and Security Concerns

At the core of Peterson’s lawsuit lies a core criticism of the Corrections Department’s decision-making regarding inmate housing assignments. The legal filing argues that placing Peterson alongside Santino Casio—a lifer serving time for murder in the second degree—represented a severe breakdown in risk evaluation and inmate classification. The lawsuit maintains that the department “ought to have been aware” to recognise the inherent risk in this pairing. Peterson’s prominent public status, the suit contends, rendered him an obvious target within the prison facility, making the housing decision not simply negligent but recklessly indifferent to his wellbeing and safety.

The lawsuit underscores that such placement choices require careful consideration of detainee profiles, threat levels, and underlying reasons for violence. By neglecting to isolate Peterson from Casio, prison administrators reportedly displayed a institutional indifference for core protective measures that ought to regulate California’s detention centres. This breach of care, the legal team contends, directly precipitated the circumstances in which the stabbing took place, converting what might have remained preventable violence into an completely anticipated consequence of institutional mismanagement and insufficient safety provisions.

Response and Security Behaviour

Beyond the primary accommodation decision, the lawsuit challenges correctional officers’ response during the actual assault. According to the filing, correctional officers delayed their intervention when Casio launched his attack, enabling the situation to worsen. The lawsuit directly challenges 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 ongoing stabbing attack suggests either poor preparation, understaffing, or a troubling disregard for prisoner safety—each possibility casting doubt on institutional competence.

The guards’ behaviour during the critical minutes of the attack raises questions about emergency procedures and personnel readiness within California’s prison system. Conventional correctional practices ordinarily stipulate rapid response to acts of violence, yet the lawsuit suggests this incident significantly departed from such protocols. The combined impact of slow response times and the absence of proper tactical measures meant that Peterson’s 16 stab wounds were inflicted with little active opposition from security personnel, converting what could have been a significant event into a critical emergency demanding hospital treatment.

The Wider Context of Lanez’s Imprisonment

Tory Lanez’s ongoing incarceration stems from a widely publicized shooting event in 2020 featuring rap artist Megan Thee Stallion. The altercation, which occurred during the summer of 2020, resulted in Peterson firing at Stallion in her foot. After a prolonged court proceedings, he was convicted in December 2022 on several firearms charges, including assault with a firearm, and thereafter given a ten-year prison sentence. This guilty verdict marked a significant moment in hip-hop, attracting extensive press coverage and igniting considerable debate across the music sector regarding accountability and the events related to the occurrence.

Peterson’s court disputes have continued throughout his incarceration, with his defence counsel mounting an appeal contesting the conviction and sentence. However, in November 2025, a panel of three judges rejected his appeal and upheld the original 10-year sentence, effectively closing what many hoped would be an avenue for release or sentence reduction. This denial came about six months after the stabbing incident at Tehachapi, meaning Peterson was dealing with both the psychological and physical aftermath of the prison attack whilst simultaneously processing the disappointment of his unsuccessful appeal. The convergence of these circumstances 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

Legal Claims and Compensation Requested

Tory Lanez’s legal claim against the California Department of Corrections pursues $100 million in financial restitution, amounting to one of the most significant claims filed against the state’s correctional system in recent years. The court filing names the Department of Corrections as the primary defendant, together with the warden and correctional officers stationed at the California Correctional Institute in Tehachapi. The lawsuit asserts that widespread deficiencies in facility operations and security protocols resulted in the severity of Peterson’s injuries during the stabbing incident in May 2025. The large compensation amount reflects both the physical injuries sustained and the mental distress of the unprovoked attack.

Central to the lawsuit’s arguments is the allegation that prison authorities made a catastrophically poor decision in housing Peterson with cellmate Santino Casio, who was completing a life term for second-degree murder. The court documents asserts that the Department of Corrections either knew or should have known that this housing arrangement posed a serious danger to Peterson, especially given his high-profile celebrity status within the prison. Furthermore, the lawsuit challenges the response 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 inflicting 16 injuries on Peterson.

  • Correctional Department did not stop identified high-risk inmate pairing
  • Celebrity status made Peterson an identifiable target for attack
  • Security personnel were slow to respond to stabbing incident
  • Prison failed to employ flash grenades or alternative security measures
  • Peterson’s personal possessions, such as unreleased songbooks, are unaccounted for