CHARLESTON, SC (WCSC) - An assault inside a jail cell at the Charleston County Detention Center may have been an act of retaliation for a shooting, authorities said Friday.
Charleston County Sheriff's officials say Everett Duffy apparently attacked cellmate Derrick Porter because Porter allegedly shot Duffy's half brother.
Investigators say the jail assault happened the same day Porter turned himself in for a shooting in North Charleston.
According to an arrest affidavit, Duffy and Porter argued inside their cell late Monday night. The affidavit states Porter was punched and thrown to floor, and he suffered four broken teeth, facial injuries and skull fractures.
Jail Administrator Willis Beatty said they had no idea about a possible connection between the two inmates because Duffy and his half brother, who is the shooting victim don't share the same last name.
"The issue with this, the last names were different and everything and we didn't catch it."
Beatty says it is standard procedure during the booking process to ask incoming inmates if they might have enemies inside the jail.
He says Porter did not indicate he had any enemies.
"As long as we know there's enemies or keep separate from co-defendants and things like this, we mark it in the system. We do everything we can to protect the inmates, that's our job."
Beatty says Duffy will spend at least 15 days in a behavioral management unit for the alleged assault.
He was already being held on an unrelated assault charge.
The sheriff's office says Porter is in intensive care at MUSC. A hospital spokesman on Friday said there is no information on Porter.