Police have obtained a warrant charging a second man in connection with the gang-related, fatal shooting of a 14-year-old boy earlier this week.

John Junior Hernandez (Courtesy Prince George's County Police Department)

Police had already arrested 24-year-old Jose Luis Rodriguez-Nunez in connection with Reyes’s killing. He was charged with second-degree murder, police said.

Law enforcement officials familiar with the case said Hernandez and Rodriguez-Nunez were members of the Mara Salvatrucha or MS-13 gang, and they attacked the group Reyes was walking with because it included members of their rival gang, the Lewisdale Crew. Hernandez is believed to have shot Reyes, while Rodriguez-Nunez drove, the officials said.

In the moments after the shooting, officials have said, a Hyattsville city police officer stopped the van both men were riding in, taking Rodriguez-Nunez into custody. Hernandez, the officials have said, ran away.

The officials spoke on the condition of anonymity because they could be disciplined for candidly and publicly discussing the ongoing investigation.

Reyes, who was not a confirmed member of any gang, attended the Foundation School in Largo and enjoyed playing soccer and basketball, his father Jose Reyes had said. Although the boy struggled in school, he was generally quiet and respectful of those older than him, his father had said.

A 19-year-old was also wounded in the shooting and has since been released from the hospital, police said.