Quinton Simon, 2, was 'beaten to death with an object by his mother while she was high on drugs'

Quinton Simon was beaten to death by his 'drugged up' mother and dumped in a mobile home dumpster, according to prosecutors.

Leilani Simon, 22, was supposedly high on drugs when she used an unidentified object to beat her two-year-old son which caused 'serious bodily injury' and led to his death, prosecutors revealed on Wednesday.

The mother of three was under the influence had met with her drug dealer right before the October murder, according to the indictment charges. The 22-year-old then dumped his body at the Azalea Mobile Home Park. 

She previously told police that her son was abducted by an intruder who broke into her Savannah home. Leilani was arrested in November but investigators haven't disclosed the details that led to her arrest.

Leilani was indicted on 19 counts and faces charges including malice murder, felony murder, concealment of death and making false statements to police about Quinton's death.

Leilani Simon, 22, was 'high on drugs' when she beat her two-year-old son with an unidentified object which lead to his death in October 

Quinton Simon's remains were found in a Georgia landfill on November 18, and Leilani was arrested three days later 

Leilani reported her son missing from her home on October 5, but Chatham County Police Chief believed she was the suspect since the start of the investigation, according to Fox News. 

A Chatham County grand jury handed down the indictment against Leilani on Wednesday after discovering Quinton's missing body in a Georgia landfill on November 18 - three days after Leilani was arrested. 

It says that Leilani 'did maliciously cause her son, Quinton Simon, a human being and a child under the age of 18 years, cruel and excessive physical pain... and the accused did, in the commission of this offense cause Quinton's death,' WJLC reports. 

The mother of three faces charges of malice murder, felony murder, concealment of death and making false statements to police 

The indictment revealed that Leilani left her Buckhaulter house on October 4 to meet her drug dealer and left the next morning on October 5 to dump his body. 

Quinton was last seen alive on October 5 by Leliani's boyfriend, Daniel Youngkin, who saw him in a pack-n-play at 6am. 

Three hours later, Leilani reported Quinton missing from her home. She claimed to have woken up at 9.30am and found the door of the house open with her son gone. 

'These are the cases that keep us up at night, these are the cases that need justice,' District Attorney Shalena Cook Jones said in a news conference on Wednesday.

'We have the evidence to bring these charges because of the hard work of the investigators, agents and rangers who worked on this case.'

She added that the criminal investigation is ongoing, and would not disclose what evidence police have found that led to Leilani's arrest.   

Quinton Simon is pictured with his parents and brother 

A grand jury indictment revealed she met with her drug dealer on October 4 and left her home the next day to dump his remains at a trailer park. Investigators who were able to track down Quinton's remains to a Savannah landfill (pictured)

Leilani's boyfriend previously claimed he last saw Quinton alive on October 5 at 6am - hours before the mother reported him abducted at around 9am 

Chatham County District Attorney Shalena Cook Jones would not disclose what evidence officers have received that led to Leilani's indictment and said the case is ongoing

Leilani was spotted with Billie Jo Betterton Howell, her mother, at Sting Ray's, a beach bar near Tybee Island, drinking tequila about two weeks after Quinton went missing. 

DailyMail.com revealed that the two were at the bar downing Patron shots for three hours. 

Prior to her arrest and following weeks of media scrutiny, Leilani had checked herself into a treatment center, according to a report.

When she informed her mother that she was planning to check herself out of the program, it was Howell who made the decision to let the FBI know her daughter's next move.

'Her mother had to make one of the hardest decisions of her life, and call the FBI agents and let them know that she was signing herself out,' said a family friend who has been staying with Howell since Quinton's disappearance.

The friend said that Howell at the request of the FBI, retrieved Leilani from the treatment center and spent the latter's last few free hours with her. 

She then took her daughter to the Savannah FBI office where she was ultimately arrested and charged with her son's murder.

Billie Jo Howell, 45, had custody of young Quinton Simon, when he was reported missing on October 5. She was away at the time, and the boy was staying with his mother 

Howell was arrested Monday on Contempt of Court charges and is now on suicide prevention watch at the Chatham County detention center 

Before Quinton died, Leilani had lost child custody of Quinton for an unknown reason.

Quinton was in Howell's custody before he went missing, but she was out of town when he disappeared. 

Howell was also arrested Monday on Contempt of Court charges unrelated to Quinton's case and is now on suicide prevention watch at the Chatham County detention center after she claimed she 'lost everything.'

Leilani's two other children were removed from her custody a week after Quinton was reported missing. 

She has pleaded not guilty to the charges filed against her and will appear in court on January 11.