Prisoner Accused of Killing Cellmate

A prisoner is dead after police say he was killed by his cellmate inside the Mercer County Correction Center.

WATCH: State Police Search for Murder Suspect

On Saturday, around 1:30 a.m., corrections officers say they spotted water flowing from underneath the door of a cell located in the Receiving and Detention area of the Correction Center.

When officers entered the cell, they found the body of 38-year-old Darryl Boone. Police say Boone’s cellmate, 19-year-old Lamar Gaines, was standing boy the door.

Police say the preliminary investigation indicates that Gaines choked and suffocated Boone after physically assaulting him. Gaines was arrested and charged with Boone’s murder with bail set at $1 million full cash.

Gaines was originally held in the corrections center in lieu of bail for robbery and carjacking in February of 2012. On Thursday, police say Gaines assaulted another inmate in the gym area of the correction center, leaving the victim hospitalized. Gaines was charged with attempted murder in connection to the alleged incident.

Before his death, Boone was being held in lieu of bail on a recent vehicular homicide charge. Investigators say his cause of death is pending autopsy.