Jose Guerra Sibrian

Jose Guerra Sibrian

A Houston man has been sentenced to 50 years in prison for assisting in the 2016 killing of a teenager at a park in Missouri City to silence him as a potential witness, prosecutors announced June 17.

Jose Guerra Sibrian, 37, pleaded guilty June 17 and was sentenced to 50 years for murder as part of a plea agreement, court records show. Sibrian had initially been charged with capital murder for his role in the killing of Estuar Quinonez, 16, as part of an MS-13 gang-related retaliation, prosecutors assert.

Sibrian was part of a group of men that in 2016 lured Quinonez to Buffalo Run Park in Missouri City and shot him 15 times as he sat on a park bench, prosecutors said.

Members of the gang were worried that Quinonez, who had witnessed several homicides, was going to testify against them, according to the Harris County District Attorney’s Office.

Sibrian is the second person to receive a prison sentence in connection to Quinonez’s killing.

Douglas Alexander Herrera-Hernandez, 24, in May was sentenced to life in prison after a jury found him guilty of capital murder, according to court records.

Herrera-Hernandez had called gang leaders in El Salvador to ask for permission to kill Quinonez and arranged to have several others, including Sibrian, hiding in the park while others picked the teenager up and took him there, prosecutors said.

MS-13 is a transnational gang that started in California in the 1980s and quickly spread across the county and into Central America. The gang now has a presence in major cities, including in Houston and the region.

Sibrian will be eligible for parole after serving 30 years of his sentence, said Michael Kolenc, spokesperson for the Harris County District Attorney’s Office.

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