Man charged in teen's 'satanic' killing to face Houston judge

Miguel Alvarez-Flores (right) and Diego Hernandez-Rivera are suspected in the death of Genesis Cornejo-Alvarado.

HOUSTON, Texas (KTRK) -- One of the men charged with killing a teenage girl in an alleged satanic ritual is due back in court.

Miguel Alvarez-Flores waved at our cameras when he was in court back in March.
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DETAILS: Alleged gang members accused in girl's satanic murder in Houston

Police said the man who committed the crime with him, Diego Hernandez-Rivera, was also charged with murder.

Investigators believe they shot and killed 15-year-old Genesis Cornejo-Alvarado back in February.

RELATED: Girl killed in satanic ritual is missing Jersey Village teen

Missing teen from Jersey Village id'd as murder victim

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RAW VIDEO: Alleged devil worshippers inside the courtroom

Raw video: Alleged satanists charged in woman's murder

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RELATED: Gang linked to satanic murder is "extremely violent"

What is the MS-13 gang?

"They're so violent that their activities get a lot of attention. Even drug cartels hire them as their muscle," explained University of Houston Sociology professor Luis Salinas.