Rapper Sues California Prison System Over Stabbing Incident

April 15, 2026 · Tylen Fenwick

Rapper Tory Lanez has launched a $100 million legal action against California’s Correctional Department after a severe stabbing incident whilst imprisoned at the California Correctional Institute in Tehachapi in May. The artist, known as 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 fellow inmate Santino Casio in what the lawsuit characterises as an “unprovoked dangerous assault.” The assault 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 prison warden, and guards as respondents, alleging negligence in housing decisions 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 serving a life sentence for second-degree murder, launched an unprovoked attack that left the rapper struggling to survive. 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 inmate classification procedures, particularly given the dangerous situation 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, marking another chapter in his time in custody. The lawsuit further contends that during this relocation, Peterson failed to retrieve his personal possessions from Tehachapi, including songbooks featuring lyrics to unreleased compositions—a loss that exacerbates the emotional and physical suffering of the incident. Notably, despite the severity of the attack, Casio was not charged in connection with the assault, a detail the lawsuit underscores as part of systemic failures within the Department of Corrections.

  • Casio stabbed Peterson 16 times during the unprovoked attack
  • Peterson taken to hospital with collapsed lung and several lacerations
  • Moved to California Men’s Colony following recovery
  • Personal items, including songbooks, remained missing from Tehachapi

Accusations of Negligence, and Organisational Breakdown

Accommodation Choices and Security Worries

At the heart of Peterson’s lawsuit sits a fundamental challenge of the Corrections Department’s decision-making regarding inmate housing assignments. The legal filing contends that housing Peterson alongside Santino Casio—a lifer serving time for second-degree murder—constituted a severe breakdown in risk evaluation and inmate classification. The lawsuit argues that the department “ought to have been aware” to recognise 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 housing decision not simply negligent but callously indifferent to his safety and wellbeing.

The lawsuit underscores that such housing decisions demand thorough evaluation of inmate backgrounds, threat levels, and possible drivers for violence. By not segregating Peterson from Casio, prison administrators reportedly displayed a institutional indifference for basic safety protocols that must oversee California’s correctional facilities. This breach of care, the legal team argues, substantially contributed to the conditions under which the stabbing happened, changing what could have stayed preventable violence into an wholly predictable consequence of institutional mismanagement and substandard security arrangements.

Response and Guard Conduct

Beyond the initial housing decision, the lawsuit takes aim at correctional officers’ response during the actual assault. According to the complaint, correctional officers failed to act promptly when Casio initiated the assault, allowing the violence to escalate unchecked. The lawsuit explicitly condemns the failure to deploy non-lethal devices or other non-lethal tactical measures that might have halted the assault before Peterson sustained his most severe injuries. This alleged sluggishness in responding to an active stabbing incident suggests either insufficient training, inadequate staffing, or a troubling indifference to inmate welfare—each possibility casting doubt on institutional competence.

The guards’ conduct during the critical minutes of the attack raises questions about emergency procedures and personnel readiness within California’s prison system. Standard correctional procedures typically mandate swift action to violent incidents, yet the lawsuit indicates this incident deviated significantly from such protocols. The cumulative effect of delayed responses and the lack of appropriate tactical intervention meant that Peterson’s 16 stab wounds were inflicted with little active opposition from security personnel, changing what could have been a serious incident into a life-threatening situation requiring hospitalisation.

The Wider Context of Lanez’s Imprisonment

Tory Lanez’s current imprisonment stems from a widely publicized 2020 shooting incident featuring rap artist Megan Thee Stallion. The confrontation, which took place in the summer of 2020, led to Peterson shooting Stallion in the foot. Following a lengthy legal process, he was found guilty 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 major turning point in rap music, drawing widespread media attention and sparking substantial discussion within the music industry concerning accountability and the circumstances surrounding the occurrence.

Peterson’s ongoing litigation have continued throughout his incarceration, with his legal team mounting an appeal challenging the conviction and sentence. However, in November 2025, a three-judge panel rejected his appeal and maintained the 10-year sentence originally imposed, effectively closing what many hoped would be an avenue for release or sentence reduction. This denial came approximately six months after the stabbing incident at Tehachapi, meaning Peterson was dealing with both the physical and psychological aftermath of the prison stabbing whilst whilst also processing the frustration of his failed appellate challenge. The confluence of these events has substantially 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

Legal Claims and Compensation Sought

Tory Lanez’s court action against the California Department of Corrections seeks $100 million in compensation, constituting one of the most significant cases filed against the state’s correctional system in the past several years. The lawsuit names the Department of Corrections as the primary defendant, together with the warden and prison staff stationed at the California Correctional Institute in Tehachapi. The lawsuit contends that widespread deficiencies in correctional management and security procedures led to the extent of Peterson’s injuries during the May 2025 stabbing incident. The large compensation amount reflects both the physical injuries sustained and the emotional harm of the unprovoked attack.

At the heart of the lawsuit’s claims is the assertion that prison authorities made a dangerously inadequate decision in housing Peterson with fellow inmate Santino Casio, who was completing a life term for second-degree murder. The legal filing asserts that the Department of Corrections either was aware or ought to have recognised that this housing arrangement posed a significant risk to Peterson, especially given his prominent inmate status within the prison. Furthermore, the lawsuit criticises the actions of correctional staff, arguing that officers failed to employ proper emergency procedures such as flash grenades to stop Casio’s attack. Notably, Casio was not prosecuted with the stabbing despite causing sixteen wounds on Peterson.

  • Department of Corrections did not stop known dangerous inmate pairing
  • Celebrity status made Peterson an identifiable target for attack
  • Security personnel were slow to respond to stabbing emergency
  • Prison failed to employ flash grenades or alternative security measures
  • Peterson’s personal possessions, such as unreleased songbooks, remain missing