An inmate is dead following a fight with another inmate at the Louisiana State Penitentiary. An investigation is now underway with the West Feliciana Parish Sheriff's Office and the Louisiana Department of Corrections.According to reports, 42-year-old Carlos McGrew, died after getting into a fight with 26-year-old inmate, Kevin Hamburg, that broke out early in the morning on July 19.McGrew is serving two concurrent life sentences for two 1998 second degree murder convictions out of Jefferson Parish, as well as an additional four years for possession of heroin in Jefferson Parish. He was also serving a year for an aggravated battery that happened in Iberville Parish. Hamburg is serving 85 years on convictions of armed robbery out of East Baton Rouge Parish, attempted second degree murder, attempted armed robbery, second degree battery, aggravated second degree battery, and possession of a firearm by a convicted felon out of West Baton Rouge Parish, as well as second degree battery out of Richland Parish. An autopsy will be performed on McGrew's body this week to determine the cause of death. Possible criminal charges are pending the outcome of the investigation and the autopsy.