Genesis Lizbeth Cornejo, 15, disappeared on January 19 from Jersey Village, just outside of Houston, but authorities initially said she had run away from home

The mother of a missing 15-year-old claims she is the unidentified girl allegedly murdered in Texas by two illegal immigrant gang members from El Salvador.

Genesis Lizbeth Cornejo disappeared on January 19 from Jersey Village, just outside of Houston, but authorities initially said she had run away from home.

Her mother Rosmeri Cornejo took to Facebook on Friday to say she was shattered that her daughter had been allegedly kidnapped and killed by two members of the MS-13 gang.

Police have not yet confirmed if the body they found shot dead in a remote area of Houston on February 16 is that of Genesis Cornejo.

They had previously released a facial reconstruction image of the victim in a bid to identify her.

Authorities described the girl as Hispanic and around five feet tall. They said she had dark, wavy hair and pierced ears.

Many of the details match the description in Genesis' missing person's report.

The Cornejo family had only just moved to Houston after previously living in New York, ABC 13 reports.

Police released a facial reconstruction image of the victim (right) in a bid to identify her after her body was found in Houston on February 16. Genesis Cornejo (left) has been missing from the area since January 19

Two known MS-13 gang members, formerly of El Salvador, Miguel Alvarez-Flores, left, and Diego Hernandez-Rivera appear in court in Houston on Thursday

Rosmeri, who can only speak Spanish, said one of her daughter's friends had told her she was being held against her will.

The two men suspected of killing the teenager and kidnapping another faced Houston court on Wednesday.

MS-13 gang leader Miguel Angel Alvarez-Flores, 22, who also goes by 'Diabolico,' and 18-year-old Diego Alexan Hernandez-Rivera laughed, smiled and waved in court.

Prosecutors said the two kidnapped a 14-year-old girl after she left school around February 2, holding her in an apartment where she was raped by a gang member.

After four days, the girl said she was taken to a different apartment where six gang members lived, and Flores kept a makeshift Satanic shrine.

Authorities say she was held against her will there for two weeks, given drugs and alcohol to keep her disoriented, and sexually assaulted by some of the men.

She also said she was held down while Flores tattooed a giant grim reaper from her knee to her foot, the Houston Chronicle reported.

Miguel Alvarez-Flores (right) smiles and waves at news cameras in Houston court on Wednesday, as the gang leader known as 'Diabolico' and his partner 18-year-old Diego Hernandez-Rivera (left) faced charges of aggravated kidnapping and murder

The 14-year-old victim told police that the two MS-13 gang members kept her prisoner for weeks, drugged her, raped her, and gave her a tattoo by force

She told investigators that a second girl she only knew as 'Genesis' also was held at the apartment.

Genesis lashed out at their captors by destroying the makeshift Satanic shrine, the first victim told police.

Flores responded by sacrificing a cigarette to the gang's shrine, but then said the 'Beast' required a soul sacrifice, according to the court hearing.

When the 14-year-old girl woke up the next day, Genesis was gone.

That girl was found shot dead in the head and chest on February 16, and has not yet been identified.

Police said Rivera had confessed in the shooting.

Police investigate the scene where the second girl was found dead on February 16

Miguel Alvarez-Flores, 22, (left) who also goes by 'Diabolico,' and 18-year-old Diego Hernandez-Rivera appeared in Houston court Wednesday on charges of aggravated kidnapping and murder

The gang member says crew boss Flores told him 'Prepare yourself, it's your turn,' according to police.

The two men then took Genesis from the apartment on the pretense of meeting a dealer to buy weed.

Rivera shot the woman in the head, killing her, and the older gang member Flores then took the gun and fired a second shot in her chest, police believe.

Rivera and Flores are each being held on $150,000 bond in Harris County Jail.

However, federal authorities have placed a hold on the illegal aliens, meaning they would be taken into federal custody if released on bail.

Both men have requested a court-appointed lawyer. They are scheduled to appear in court on April 18.