Rapper Sues California Prison System Over Stabbing Incident

Rapper Tory Lanez has filed a $100 million lawsuit 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 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 characterises as an “unprovoked life-threatening attack.” The assault left Peterson hospitalised with a punctured lung and numerous stabbing injuries to his back, torso, and head. The lawsuit names the Department of Corrections, the facility warden, and guards as respondents, alleging negligence in housing decisions and a slow reaction to the violence.

The May 2025 Incident 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 murder in the second degree, launched an unprovoked assault that left the rapper struggling to survive. Peterson sustained a collapsed lung alongside several stab injuries 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 volatile circumstances of housing two inmates with such starkly different profiles and threat levels.

Following his recuperation, Peterson was relocated to San Luis Obispo County’s California Men’s Colony, representing another phase in his prison ordeal. The lawsuit further alleges that during this move, Peterson did not regain his personal items from Tehachapi, including songbooks with lyrics to unreleased compositions—a loss that exacerbates the emotional and physical suffering of the attack. Notably, despite the severity of the attack, Casio was not held accountable in connection with the stabbing, a detail the lawsuit emphasises as part of systemic failures within the correctional system.

• Casio stabbed Peterson 16 times during the unprovoked assault
• Peterson admitted to hospital with punctured lung and multiple wounds
• Transferred to California Men’s Colony after recovery
• Personal possessions, including songbooks, never recovered from Tehachapi

Accusations of Negligence and Organisational Breakdown

Accommodation Choices and Security Worries

At the heart of Peterson’s lawsuit lies a fundamental criticism of the Department of Corrections’ decision-making regarding inmate housing assignments. The legal filing contends that placing Peterson with Santino Casio—a lifer serving time for murder in the second degree—constituted a catastrophic failure in risk evaluation and prisoner classification. The lawsuit argues that the department “knew or should have been known” to recognise the inherent risk in this arrangement. Peterson’s prominent public status, the suit maintains, rendered him an obvious target inside the correctional facility, making the accommodation choice not merely negligent but callously indifferent to his wellbeing and safety.

The lawsuit highlights that such accommodation determinations demand thorough evaluation of detainee profiles, security classifications, and underlying reasons for violence. By neglecting to isolate Peterson from Casio, prison administrators allegedly demonstrated a institutional indifference for basic safety protocols that must oversee California’s correctional facilities. This breach of care, the attorneys maintains, directly precipitated the circumstances in 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 primary accommodation decision, the lawsuit challenges correctional officers’ response during the incident of violence. According to the filing, correctional officers were slow to intervene when Casio carried out his attack, allowing the violence to escalate unchecked. The lawsuit directly challenges the failure to employ flash grenades or other non-lethal tactical measures that might have stopped the attack before Peterson suffered his worst injuries. This alleged slow reaction to an active stabbing incident suggests either inadequate training, understaffing, or a troubling disregard for prisoner safety—each possibility casting doubt on institutional competence.

The guards’ behaviour during the crucial minutes of the attack prompts inquiry into emergency procedures and personnel readiness within California’s prison system. Conventional correctional practices typically mandate swift action to violent incidents, yet the lawsuit suggests this incident significantly departed from such protocols. The combined impact of sluggish reaction times and the absence of appropriate tactical intervention meant that Peterson’s 16 stab wounds were inflicted with little active opposition from security personnel, transforming what could have been a serious incident into a critical emergency demanding hospital treatment.

The Wider Context of Lanez’s Incarceration

Tory Lanez’s ongoing incarceration originates from a high-profile shooting event in 2020 involving fellow rapper Megan Thee Stallion. The confrontation, which took place in the 2020 summer months, resulted in Peterson firing at Stallion in her foot. Following a lengthy legal process, he was found guilty in December 2022 on multiple gun-related charges, including assault using a firearm, and thereafter given a ten-year prison sentence. This conviction represented a significant moment in rap music, attracting extensive press coverage and igniting substantial discussion within the music industry regarding accountability and the events related to the occurrence.

Peterson’s court disputes have persisted during 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 10-year sentence originally imposed, effectively closing what many anticipated as an avenue for release or sentence reduction. This rejection came roughly six months after the stabbing attack at Tehachapi, meaning Peterson was contending with both the physical and psychological aftermath of the prison attack whilst at the same time dealing with the disappointment of his unsuccessful appellate challenge. The confluence of these events has significantly complicated his experience within the California prison system.

Legal Claims and Compensation Requested

Tory Lanez’s court action against the California Department of Corrections seeks $100 million in financial restitution, representing one of the most significant cases filed against the state’s correctional system in recent times. The legal action 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 safety measures resulted in the seriousness of Peterson’s injuries during the May 2025 stabbing incident. The large compensation amount reflects both the bodily harm sustained and the mental distress of the unprovoked assault.

At the heart of the lawsuit’s arguments is the assertion that prison authorities made a catastrophically poor decision in placing Peterson with cellmate 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 serious danger to Peterson, especially given his prominent inmate standing within the facility. Furthermore, the lawsuit challenges the actions of security personnel, arguing that officers failed to employ appropriate emergency measures such as flash grenades to stop Casio’s attack. Notably, Casio was never charged with the assault despite inflicting 16 injuries on Peterson.

• Department of Corrections did not stop identified high-risk inmate pairing
• Celebrity status made Peterson a recognisable target for violence
• Security personnel delayed response to stabbing emergency
• Prison did not use flash grenades or alternative security measures
• Peterson’s personal possessions, such as unreleased songbooks, are unaccounted for