Rapper Sues California Prison System Over Stabbing Incident

Rapper Tory Lanez has filed a $100 million legal action against California’s Department of Corrections after a severe stabbing incident whilst imprisoned at the California Correctional Institute in Tehachapi in May. The artist, known as Daystar Peterson and presently completing a 10-year sentence for the 2020 shooting incident involving Megan Thee Stallion, was struck 16 times with a blade by prison inmate Santino Casio in what the lawsuit characterises as an “unprovoked dangerous assault.” The attack left Peterson hospitalised with a collapsed lung and numerous stabbing injuries to his back, torso, and head. The lawsuit names the Department of Corrections, the prison warden, and guards as defendants, alleging negligence in housing decisions and a delayed response 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 completing a life sentence for murder in the second degree, launched an unprovoked assault that left the rapper struggling to survive. Peterson sustained a punctured lung alongside several stab injuries across his back, torso, and head—injuries severe enough to warrant immediate hospitalisation. The attack raised significant concerns about security procedures in prisons and inmate classification procedures, 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, representing another phase in his incarceration experience. The lawsuit additionally claims that during this transfer, Peterson never recovered his personal items from Tehachapi, including songbooks containing lyrics to unreleased music—a loss that exacerbates the psychological and physical harm of the incident. Notably, despite the seriousness of the assault, Casio was not prosecuted in connection with the knife attack, a detail the lawsuit highlights as part of systemic failures within the correctional system.

• Casio struck Peterson 16 times during the unprovoked assault
• Peterson admitted to hospital with collapsed lung and numerous injuries
• Transferred to California Men’s Colony upon recovery
• Personal belongings, including songbooks, not recovered from Tehachapi

Accusations of Negligence, and Organisational Breakdown

Housing Decisions and Safety Issues

At the heart of Peterson’s lawsuit lies a core criticism of the Department of Corrections’ decision process concerning inmate housing assignments. The legal filing argues that housing Peterson with Santino Casio—a life-sentence prisoner serving time for second-degree murder—constituted a severe breakdown in risk evaluation and prisoner classification. The lawsuit argues that the department “ought to have been aware” to identify the danger inherent in this arrangement. Peterson’s prominent public status, the suit maintains, made him an obvious target within the prison facility, rendering the housing decision not merely negligent but recklessly indifferent to his wellbeing and safety.

The lawsuit highlights that such placement choices necessitate close examination of prisoner histories, threat levels, and potential motivations for violence. By neglecting to isolate Peterson from Casio, correctional officials allegedly demonstrated a institutional indifference for basic safety protocols that should govern California’s correctional facilities. This failure of duty, the counsel maintains, substantially contributed to the conditions under which the stabbing occurred, transforming what should have been preventable violence into an entirely foreseeable consequence of systemic failure and substandard security arrangements.

Response and Guard Conduct

Beyond the primary accommodation decision, the lawsuit targets correctional officers’ response during the incident of violence. According to the filing, correctional officers were slow to intervene when Casio carried out his attack, enabling the situation to worsen. The lawsuit directly challenges the failure to deploy non-lethal devices or other non-lethal tactical measures that might have halted the assault before Peterson incurred his most critical harm. This alleged slow reaction to an active stabbing incident suggests either inadequate training, inadequate staffing, or a troubling neglect of inmate wellbeing—each possibility undermining institutional competence.

The guards’ actions during the crucial minutes of the attack calls into question emergency procedures and personnel readiness within California’s prison system. Typical prison protocols ordinarily stipulate swift action to violent incidents, yet the lawsuit suggests this incident deviated significantly from such protocols. The cumulative effect of sluggish reaction times and the absence of proper tactical measures meant that Peterson’s 16 stab wounds were inflicted with scant active defence from security personnel, converting what could have been a significant event into a life-threatening situation necessitating hospitalisation.

The Larger Context of Lanez’s Incarceration

Tory Lanez’s ongoing incarceration stems from a high-profile 2020 shooting incident featuring rap artist Megan Thee Stallion. The confrontation, which took place in the 2020 summer months, led to Peterson firing at Stallion in her foot. Following a prolonged court proceedings, he was found guilty in December 2022 on several firearms charges, including assault with a firearm, and thereafter given a ten-year prison sentence. This guilty verdict represented a major turning point in rap music, attracting widespread media attention and sparking substantial discussion within the music industry concerning responsibility and the circumstances surrounding the occurrence.

Peterson’s court disputes have continued throughout his incarceration, with his attorneys mounting an appeal contesting 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 path to release or reduction in sentence. This denial came roughly six months after the stabbing attack at Tehachapi, meaning Peterson was grappling with both the psychological and physical aftermath of the prison stabbing whilst simultaneously processing the disappointment of his unsuccessful appellate challenge. The combination of these events has markedly worsened his situation in the California correctional system.

Legal Actions and Compensation Sought

Tory Lanez’s legal claim against the California Department of Corrections pursues $100 million in compensation, constituting one of the most substantial claims filed against the state’s correctional system in recent years. The court filing names the Department of Corrections as the principal defendant, together with the warden and prison staff stationed at the California Correctional Institute in Tehachapi. The lawsuit contends that institutional failures in prison management and security procedures directly contributed to the seriousness 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 claims is the assertion that correctional officials made a catastrophically poor decision in housing Peterson with cellmate Santino Casio, who was serving a life sentence for second-degree murder. The court documents asserts that the correctional department either knew or should have known that this housing arrangement posed a significant risk to Peterson, particularly given his high-profile celebrity standing within the facility. Furthermore, the lawsuit challenges the actions of security personnel, arguing that guards failed to employ proper emergency procedures such as stun grenades to stop Casio’s assault. Notably, Casio was never charged with the stabbing despite inflicting 16 injuries on Peterson.

• Correctional Department failed to prevent known dangerous inmate pairing
• Celebrity status made Peterson an identifiable target for attack
• Security personnel delayed response to stabbing incident
• Prison did not use flash grenades or other containment measures
• Peterson’s belongings, including unreleased songbooks, are unaccounted for