The guy who allegedly attacked and stabbed Tory Lanez in prison is serving a life sentence for a murder charge ... and this wasn't his first violent incident behind bars.

The 32-year-old artist’s suspected attacker is named Santino Casio, a man serving a life sentence for a second-degree murder charge, first-degree attempted murder, personal use of a deadly weapon, and inflicting “great bodily injury,” TMZ reports.

The man who allegedly stabbed Tory Lanez in prison is reportedly serving a life sentence for a murder charge. A source from the California Department of Corrections and Rehabilitation told TMZ that Lanez was attacked by inmate Santino Casio on Monday morning at the California Correctional Institution in Tehachapi.

Rapper Tory Lanez stabbed 14 times in jail while serving 10-year sentence for shooting Megan Thee Stallion - The rapper is currently serving a 10-year sentence for shooting Megan Thee Stallion at the California Correctional Institution in Tehachapi,

Tory Lanez reveals development of "slutty bass" musical genre for upcoming album, maintaining creative output despite legal challenges.