(AP) — The man charged with four counts of first-degree murder in the shooting deaths of four people in three separate attacks last summer is suing the state prison system and others for nearly $25 million.

Nikko Jenkins says in his lawsuit filed earlier this week that prison officials ignored his pleas for mental illness treatment and that years of solitary confinement in prison led him to mutilate his face and suffer “four large facial wounds.”

The lawsuit was written in hand by Jenkins.

Jenkins has pleaded not guilty in the deaths of Juan Uribe-Pena, Jorge Cajiga-Ruiz, Curtis Bradford and Andrea Kruger, whom prosecutors say were killed by Jenkins and others over a 10-day period. The shooting deaths came within three weeks of Jenkins’ release from prison on July 30.