The Daily Voice can also reveal that the 30-year-old woman, who was reported missing by her family after she and her car disappeared on 3 August, had been strangled to death with a rope.
Also, one of the suspects, Jeremy Sias, 27, was known to her.
Sias, Charles Daniels, 34, and Shiraaj Jaftha, 35, were initially arrested on Wednesday for being in possession of Meghan’s stolen car, a Toyota Auris, and appeared at the Athlone Magistrates’ Court on Thursday.
Two of the men are suspected members of the Six Bob gang.
It is understood Sias confessed on Wednesday night and told cops where to find Meghan’s body.
She was found fully dressed, with a rope around her neck and her hands tied among sand dunes on a farm in Philippi at 1am on Thursday.
Meghan, who was a horse rider and worked at Woodstock Bakery with one of her siblings, was last seen alive on 3 August after leaving her home in Rietvlei, Philippi just after 6pm.
Police spokesperson, Captain FC van Wyk, confirms Sias will be charged with murder.
“Our investigation and search operation led us to a sand mine on a Philippi farm (on 8 August) at around 1am where the body of the missing person was found.
“One of the suspects, the 27-year-old male, will also be charged for murder.”
The trio is expected to be back in court on Thursday, 15 August.
Last Thursday family friend, Linda Mohr, took to Facebook after claims were made that her son, Grant Mohr, was friends with Sias and he received death threats.
Meghan, originally from Knysna, befriended the Mohr family while studying for her Microbiology Master’s Degree at UCT.
Linda said she was shocked as Sias had worked as a labourer on their horse farm.
She told the Weekend Argus a man on Facebook said he would “kill Grant if he saw him”.
“Jeremy was born and grew up on one of our family members farm in the area alongside ours,” Linda wrote.
“He was a labourer on our bottom farm, but had no dealings with our stud and livery clients.
“As a family we are not only reeling about losing our dearest Meghan, but now the knowledge that Jeremy was involved has come as a huge shock to us all.
“We are all devastated. Please let’s do this for Meghan and make sure they stay behind bars.”
The suspects are expected back in court on 15 August for bail information.
A memorial service was held for Meghan on Friday at her home in Rietvlei and was attended by her mother, Gill Cremer, who stood with her daughter’s horse during the proceeding, but was too distraught to speak.
Meghan spent her Friday mornings horse riding with her friend, Jamie Lilford, who said she was kind and generous to a fault.
Jamie said: “Financially she would assist, and would be the Secret Santa. She was an amazing person; anything you needed, she was there.”