A 21-year-old man who is a suspect in a Nov. 26 killing has been linked to another homicide that occurred in March, Phoenix police said.

Leonardo Santiago, who has been charged in the death of Bernardo Pantaleon, now faces another first-degree murder charge in the slaying of Osvaldo Hernandez Castillo, 20, according to a Phoenix Police Department release.

Castillo was found shot in a vehicle on the afternoon of March 20 near 24^th Avenue and Mission Lane. He died at the scene.

Homicide detectives were called to investigate the shooting where they processed the scene and collected evidence for analysis, police said.

The case remained active until new information was discovered during the November homicide case. 

“Detectives were able to uncover digital evidence to link Santiago to the homicide,” police said in the release. He was questioned by detectives on Dec. 7 and admitted to his involvement in the March shooting, police said.

He also is one of four men behind bars in connection with the death of Pantaleon, who was found dead Nov. 26 at a park near 7^th and Cinnabar avenues, “having suffered from significant bodily trauma,” police said in a separate release.