"Inmate Cannon, who did this — is just pure evil," Chambers-Smith said. She also said that Cannon appears to have "veered away" from the dining hall as his unit was moving there, and attacked Lansing while he was in a guard shack,

Rashawn Cannon was identified as the inmate who assaulted and killed Officer Andrew Lansing at the Ross Correctional Institution.

A correction officer has died following an inmate assault at a prison in Ross County, Ohio, according to authorities.