Detectives ultimately found Cleavenger's body in her burial site at River City Church in the early-morning hours Saturday.
Investigators say Ramos woke her up and strangled her around 12:30 a.m. Authorities plan on exhuming her remains from fire pit grave on Saturday. The boy initially told deputies his mother was missing.
Chitwood says he faces murder charges.
The boy faces murder charges, Sheriff Chitwood said. Deputies also recovered a shovel and broom used to bury Cleavenger and straighten up the scene around the fire pit.
After the killing, authorities said the boy called friends to help him make it look like someone had burglarised the home.
Authorities found the door to the house kicked down, the house ransacked and Cleavenger's truck running in the driveway after the teen reported the burglary to police on Friday afternoon. During questioning, the teens confessed to helping Ramos, prompting Ramos to fess up to the murder, according to cops.
¡Cómo han crecido! Inesperadamente, Aracely Arámbula comparte foto con sus hijos
Y ninguno correspondía con la máscara parecida a Luisito Rey lo que demostró que fue solo una broma del momento. Miguel y Daniel son producto del noviazgo que sostuvo Aracely Arámbula con Luis Miguel de 2005 a 2009.
Arriving home, Ramos placed what he called a "Grammy-winning" 911 call to report the burglary, using classes he took in criminal justice at University High to try and give a flavor of truth to his lies.
"The case we worked tonight was one of the most disturbing and saddest I've seen in my career", Sheriff Mike Chitwood said in a Friday evening statement. "I have a feeling this is a case we'll be hearing about for years to come".
'He was very proud of his work and he wanted to show it off. All our hearts break for this family.
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".
"He said, 'I did a really good job at staging everything, '" Pagliari said.
On Sunday, a judge ordered Ramos to remain in juvenile detention for the next 21 days until a further court order, WFTV reported.