Craig Arno of Atlantic City and Jessica Kisby of Egg Harbor Township are accused of carjacking Martin Caballero of North Bergen from the Trump Taj Mahal garage on May 21, then stabbing him to death and dumping his body.
They pleaded not guilty to murder charges on Wednesday.
Kisby was moved from the Atlantic County Jail to one in Salem County on Friday after writing letters to Arno and allegedly seeking to recruit inmates to pass messages between them.
Authorities say the crime was random and the suspects did not know Caballero before attacking him.
