Sheriff denies criminal charges . Hernandez discussed killing in jailhouse calls . Authorities report jailhouse fight with Aaron Hernandez . Neither man was seriously injured in the altercation . Former NFL star is being held on a first - degree murder charge in murder of Odin Johnson .
Sheriff denies criminal charges . Authorities report jailhouse fight with Aaron Hernandez . Neither man was seriously injured in the altercation . Former NFL star is being held on a first - degree murder charge in murder of Odin Johnson .