Prosecutors charged him with premeditated murder and a judge decided on Monday that he will be held in jail without bond.
A 15-year-old Florida teen remains locked up after investigators say he strangled his mother following an argument over bad grades.
After the killing, authorities say the boy called friends to help him make it look like someone had burglarized the home.
"Probably around midnight he left his room and went into his mother's room, where he proceeded to strangle her. Thought she was dead".
Chitwood said that Ramos tried to justify his actions as "preemptive self-defense", and was convinced that "he had to kill [Gail] before she killed him". After the argument, the mother called the father who was in Seattle on a business trip.
"He then got home and made his, in his own words, "Grammy-winning phone call to 911" to talk about this terrible incident that did not really occur", Chitwood said.
The Walking Dead Movies Signs Andrew Lincoln After Show Exit
The three movies will be the first of, "multiple new scripted ventures" that will expand The Walking Dead franchise. Which answers the question to Sunday night's episode, titled "What Comes After", pretty clearly.
Officers also found computers and other electronics including a Playstation and a rifle at a different location in DeBary that had been moved while staging the burglary.
Chitwood said the three teens then buried her in a shallow grave. After disposing of the wheelbarrow outside of town, Chitwood said Ramos enlisted the help of two of his friends, both 17, to help him dispose of the body and stage a burglary.
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.
'He was very proud of his work and he wanted to show it off.
The next morning, Ramos went to school and called police after he came home that afternoon to report that his mom was missing, the house had been ransacked and her van was still running in the driveway. "All our hearts break for this family", Chitwood tweeted on Saturday.
The sheriff said the case has been one of the most disturbing and saddest he has encountered. Ramos was a member of the Orange City Police Explorers and took criminal justice classes in which he studied crime scenes, reported the Orlando Sentinel.