On January 16, 2019, Sharon David, 80, and her husband Gerald David, 81, were found shot dead in their home in the Reno, Nevada area. This tragic event was part of a series of brutal murders that shook the communities in and around Reno.
The investigation into the deaths of the Davids, as well as two other victims, Connie Koontz and Sophia Renken, led authorities to a suspect named Wilbur Ernesto Martinez-Guzman.
Martinez-Guzman, a 19-year-old Salvadoran immigrant, was taken into custody on January 19, 2019. At the time of his arrest, he was living in Carson City, Nevada, and had been in the United States illegally.
Martinez-Guzman was identified as the prime suspect after a thorough investigation involving multiple law enforcement agencies. From January 10 to January 19, investigators followed up on numerous tips and leads, which eventually led them to focus on several specific locations in Carson City. On the afternoon of January 18, surveillance teams were deployed to locate Martinez-Guzman and anyone associated with him. By 7 a.m. on January 19, investigators found him at a home in east Carson City.
Prosecutors later revealed that Martinez-Guzman had stolen a. 22 caliber revolver from the Davids' home on January 4, 2019, which he then used to commit the subsequent murders. He was accused of burglarizing and killing Connie Koontz on January 9 or 10, Sophia Renken on January 13, and finally, Gerald and Sharon David on January 15.
Following his arrest, Martinez-Guzman was held in the Carson City Detention Facility initially on immigration charges and charges related to possession of stolen property. Subsequently, he was transferred to the Washoe County Jail in Reno, where he was indicted by a grand jury on four murder charges and five burglary charges. The Washoe County District Attorney, Chris Hicks, and Douglas County District Attorney, Mark Jackson, announced their intention to seek the death penalty if Martinez-Guzman was convicted.
The case against Martinez-Guzman was complicated by jurisdictional issues, as the Nevada Supreme Court ruled that he must be tried in the counties where the slayings took place. This led to separate charges being filed in Douglas County for the deaths of Connie Koontz and Sophia Renken, while the charges for the deaths of Gerald and Sharon David were to be tried in Washoe County.
Martinez-Guzman had worked as a landscaper at all three properties where the four victims were killed over a two-week period, a fact that further linked him to the crimes. According to prosecutors, Martinez-Guzman confessed to the shootings, although the exact motive behind the murders was not disclosed.
The families of the victims, including relatives of Gerald and Sharon David, were present at the news conference where Martinez-Guzman's arrest was announced, expressing their sympathies and prayers for the other families affected by the tragedy.