He was ordered held on $1 million bail.
The prosecutor also says a stolen car that was connected to Byrd and two other suspects was found abandoned in another part of Camden.
Authorities claim Byrd, Eric Darden and Raheem Simmons stalked potential victims at two casinos before targeting 28-year-old Sunil Rattu and 24-year-old Radha Ghetia at the Trump Taj Mahal Casino Resort garage on Sunday morning.
Rattu died from two gunshot wounds to the head. Ghetia is recovering from a gunshot wound.
The other suspects remain at large.
Authorities are asking anyone with information about the incident to contact the Atlantic County Prosecutor's Office Major Crimes Unit at 609-909-7899 or the Atlantic City Police Department Detective Bureau at 609-347-5766.