Ramos also told Pagliari that his mother was abusive toward him and thought she might kill him one day.
The teen is charged with first-degree premeditated murder of his mother, Gail Cleavenger. He also reportedly said that his mom was missing.
Ramos put Cleavenger's body in a wheelbarrow, loaded her in the family van and then drove to a church yard to bury her in a shallow grave under a fire pit, Chitwood said.
A 15-year-old boy is facing a murder charge after deputies found his mother's body buried under a fire pit at a church early Saturday morning, according to the Volusia County Sheriff's Office.
Chitwood described the schoolboy as "soulless", said he showed no remorse, and is "among the top three sociopaths I have ever encountered".
In Ceglarek's case, the grandparents, Joe and Marion Cappizzi, of Deltona, who have custody of the teen who turns 18 on December 20, did not even know that their grandchild was not in school on Friday, the day Ceglarek was out helping Ramos, Jacques said.
Officials said he later confessed to the killing of his mother and implicated his friends.
Chitwood told reporters that the son's version of events didn't add up, especially after investigators noted injuries to the defendant's face. ABC News is withholding the suspect's name because he is a minor and has not yet been formally charged with a crime.
Volusia County sheriff's detectives are investigating the suspicious disappearance of a DeBary woman who went missing Friday and is considered endangered.
He then called his two best friends to help hide her body and stage a robbery at his home. Police say Ramos and his mother got into a bad argument after he came home with a "D" in one of his subjects.
A judge on Sunday ordered a 15-year-old DeBary teenager, whom authorities said confessed to strangling his mother, to remain in juvenile detention until the next hearing in the case, according to a local state attorney's office.
"The deputies and detectives who worked through the night and into the morning gave this case absolutely everything they had, and I hope the family knows that Gail has all of us fighting for justice for her", Chitwood said.