According to the Daily Mail, Leroy McCrary, 26, and Malachi Darnell and Jaden Cunningham, both 18, were scheduled to appear at Orange County Superior Court and enter pleas.
However, none of the trio showed up, defying an order from Judge Andre Manssourian.
It was the second time the three men had refused to turn up to court, says the Daily Mail. Last Friday, they reportedly refused to budge from their cell, which is only 180m from the courtroom.
The district attorney’s office said the couple were waiting for a ride after finishing shopping at the shopping centre when a white Toyota Camry pulled up.
Two men in masks jumped out and attacked former BNZ and Eden Park Trust Board chairman Doug, 69. They put a gun to his head and demanded he hand over his watch.
“When the suspects, later identified as Darnell and Cunningham, were unable to get his property, Cunningham is accused of attacking McKay, who was holding several shopping bags,” the district attorney said.
Cunningham allegedly threw Patricia to the ground and dragged her into the street in front of the getaway car driven by McCrary as he stole her bags.
Doug jumped in front of the Camry trying to stop Patricia from being run over, but McCrary accelerated forward, pushing him out of the way. He then allegedly ran over Patricia, who was dragged almost 20m.
Aggravating factors under the California statutes include that the murder was intentional and carried out for financial gain.
The Orange County District Attorney’s Office said the “felony enhancement” rendering the alleged murder a possible capital crime is the fact they killed an “elder over the age of 65″ in the commission of a robbery.
California executes prisoners using lethal injection, except those convicted before its adoption who can request gas.