Santino Casio, 42, was identified as the alleged assailant who stabbed Tory Lanez. Casio is serving a life sentence for second-degree murder and was previously convicted for an in-prison assault with a deadly weapon.

Prison officials have launched an investigation into the attack on Lanez, who is serving a 10-year prison sentence.

We're beginning to learn more about the Tory Lanez stabbing at a California prison. On Monday, TMZ reported that Lanez, who is currently serving a