Shiraaz Jaftha, 34, on Wednesday decided to withdraw his bail application in the Athlone Magistrates' Court.
His co-accused - Jeremy Sias, 27, and Charles Daniels, 39 - had earlier abandoned their bail applications and the case was postponed to 16 October for further investigation.
Senior State Prosecutor, Advocate Emily van Wyk, said the men would remain in custody.
Sias, who grew up in a cottage on the farm where Meghan lived, has been charged with murder and armed robbery and his two co-accused are charged with car theft and defeating the ends of justice.
Outside court, the men’s families said they must do the time if they did the crime, adding that they were praying for them.
As Daniels and Sias, dressed in hoodies, made their way down to the court holding cells, they winked and waved at relatives in the public gallery.
Daniels’ elderly mother, 76, told the Daily Voice: “If he did something (wrong) he must pay for it. I have six girls and he is the only boy. I do not feel sad (about his incarceration), but I am praying for him.”
Sias’ aunt, who also asked not to be identified, burst into tears when she saw him in the dock.
She described him as a “gentle soul” and says his arrest had shocked the family.
She added that she did not know Meghan.
“I was in Malmesbury when it happened. We are shocked because he is not this type of person. He is very quiet and we lost his mother recently. We are praying for everyone.”
Sias currently has a pending case of theft of a motor vehicle, and a previous conviction for assault.
Daniels has a pending theft case and a previous conviction for drug possession, while Jaftha has a previous conviction for drug possession and a pending case of murder.
They are all believed to be members of the Six Bobs gang.
Members of SA Women Fight Back, who started a petition to oppose bail for the accused, were also at court, holding up placards outside.
Meghan, who worked at a Woodstock bakery, went missing on 3 August after leaving her home in Rietvlei, Philippi.
Her body was found on 8 August on a sand mine on a farm in Philippi. This was after an alleged confession by Sias.
The 30-year-old showjumper had been strangled to death. A rope was found around her neck. Cops arrested the trio in her car.