A man wanted in the fatal downtown Louisville shooting of 28-year-old Giovani Castillo Garcia was captured in Indio, California, more than 1,800 miles from the scene where police say Garcia was gunned down last month. U.S. Marshals arrested 25-year-old Marlon Porro Duane on charges including murder by complicity, attempted murder, and two counts of first-degree wanton endangerment.
The case dates back to the early morning of July 19, when officers were called to a shooting near an alley in the 600 block of South 3rd Street in Louisville's Central Business District, according to WAVE News. Responding officers found Garcia outside with gunshot wounds and provided first aid, but he was pronounced dead at the scene, as detailed in a Facebook post from reporter DeAndria Turner. The Jefferson County Coroner's Office later identified him as Garcia.
Around the same time, police were also called to UofL Hospital, where an adult male had arrived on his own with a gunshot wound to the leg, per the WAVE report. Police believed the two shootings were connected, though they did not indicate what the relationship between the two incidents actually was — a detail that remains unclear as the investigation continues.
From a Downtown Alley to the California Desert
Garcia's death set off an active and ongoing investigation that ultimately led federal authorities across the country. The station's report notes that Duane was arrested in Indio, California. He now faces the same complicity-to-murder charge.
The two first-degree wanton-endangerment counts against Duane are Class D felonies unless a firearm was discharged, in which case they are Class C felonies under Kentucky law, per FindLaw. The charge concerns conduct that creates a substantial danger of death or serious injury, per FindLaw. The outlet reports that Duane was arrested in California.
A Block With a Violent Recent Past
The 600 block of South 3rd Street is where the fatal downtown shooting occurred. LMPD is investigating the shooting.
Garcia's death also arrives against the backdrop of a broader decline in homicides across Louisville. Annual killings in the city dropped by roughly 22% in 2025, falling to about 114 recorded homicides compared with 144 in 2024, according to Hoodline. Even against that downward trend, Garcia's family has had to grapple with sudden loss; relatives set up an online GoFundMe campaign to help cover funeral and memorial expenses following his death.
Investigation Remains Open
LMPD has not said what relationship, if any, existed between Garcia and the man treated at UofL Hospital, and the exact motive behind the shootings has not been made public. Anyone with information is urged to contact LMPD's crime tip line at 502-574-LMPD (5673), or to submit tips anonymously through the department's online portal. Investigators consider the case active and ongoing.
