The victim, Carvajal, was gunned down after leaving a party in the city's Belmont Cragin neighborhood in 2021.
Carvajal's family said police arrested Joseph 'Troubles' Matos soon after the murder, but the state's attorney's officer determined there was insufficient evidence to file charges.
In 2024, charges were filed the U.S. Attorney has filed racketeering and gun charges against Matos.
SEE ALSO | Charges filed in connection to 2021 murder of 19-year-old Chicago National Guardsman Chrys Carvajal
The FBI has raised their reward to $50,000 for information that leads to the arrest and conviction of Matos. They said he should be considered armed and dangerous.
Carvajal was just days away from his 20th birthday when he was killed. He was a member of the Army National Guard, and Carvajal also hoped to go the academy and become a Chicago police officer.
"That was one of his hopes and dreams. He loved this city," Carvajal's sister, Jennifer Ramirez, previously said.
The video in the player above is from a previous report.
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