Jury Selection Begins in San Antonio Murder Trial
The legal proceedings against Nathan Martinez have started in connection to a 2023 homicide.
Updated on Oct. 26, 2026 in Crime — General
Jury selection has officially commenced for the murder trial of Nathan Martinez, who is accused of killing 17-year-old Julian Junior Robledo in August 2023. Martinez remains a central figure in multiple violent crime investigations across San Antonio.
Why it matters
The trial represents a major step in judicial proceedings for a defendant linked by investigators to nine different criminal cases spanning 2022 to 2023. Authorities used ballistic evidence from multiple scenes to connect Martinez to several high-profile shootings.
Martinez faces charges in nine separate cases, including a pending capital murder count for a 2022 shooting that left two people dead and five wounded. If convicted in the current trial, the defendant faces a potential sentence of up to life in prison.
The players
Nathan Martinez
He is the defendant currently standing trial for the 2023 murder of a teenager and faces multiple capital murder and aggravated assault charges.
Julian Junior Robledo
He was a 17-year-old victim whose death in August 2023 serves as the basis for the current murder trial.
The details
Investigators linked the defendant to the crime scenes by matching ballistic evidence found at the 200 block of Mosscircle Drive, the 2500 block of Patron Drive, and the 700 block of West Mayfield Drive. Prosecutors also pointed to social media posts where the defendant allegedly boasted about using firearms.
Timeline
June 18, 2022: The first shooting incident occurred on Patron Drive.
August 2023: A shooting on Mosscircle Drive resulted in the death of Julian Junior Robledo.
October 26, 2026: Jury selection began for the murder trial.
Legal Context
The use of ballistic synchronization to prosecute multi-scene shooting sprees has become a common strategy for linking complex violent crime cases. This trial follows a pattern where prosecutors connect disparate incidents to build a broader criminal case against a single defendant.
The trial addresses a series of violent incidents that occurred in multiple San Antonio neighborhoods, including areas near Patron, Mosscircle, and West Mayfield drives. Residents may see an increased law enforcement presence in the vicinity of the courthouse during these proceedings.
The takeaway
This case highlights the importance of ballistic forensics in building criminal cases that span multiple years and locations. Keeping track of local court dockets can help residents stay informed about the status of ongoing criminal proceedings in their community.
Further reading
For more on local legal proceedings, visit the San Antonio Crime — General section.
