An 89-year-old Cutler Bay man has not been seen since around noon Tuesday, and deputies say he was last spotted driving a gray minivan that could now be anywhere in South Florida. Luis Gustavo Zambrano was last seen around noon in the 19000 block of Gulfstream Road, and investigators say he has not contacted his family since.
Last Seen Behind the Wheel on Gulfstream Road
According to the WSVN 7News report on the case, the Miami-Dade Sheriff's Office says Zambrano was driving a gray 2016 Honda Odyssey bearing Florida license plate HTNA78 when he disappeared. Detectives describe him as 5 feet 8 inches tall and around 160 pounds, with gray hair and brown eyes, and say he was last wearing a white button-up shirt and blue jeans. Officials have said Zambrano may need services, though the exact nature of that need has not been detailed.
Deputies are asking anyone with information to contact MDSO Deputy F. Owens at 305-715-3300 or 305-715-3278, or by email at [email protected]. Tipsters who prefer to remain anonymous can also reach out to Miami-Dade Crime Stoppers at 305-471-TIPS (8477), which offers cash rewards of up to $5,000.
Why a Vehicle Changes the Search Calculus
Zambrano's case is unfolding in a county where the stakes around missing elderly residents are especially high. Miami-Dade County has the nation's highest county-level prevalence of Alzheimer's disease among seniors 65 and older, at 16.6 percent, according to a nationwide study from the Alzheimer's Association. In Cutler Bay itself, roughly 16.9 percent of the town's more than 45,000 residents — about 7,611 people — are 65 or older, according to U.S. Census Bureau estimates.
Research cited by a prior Hoodline report on a similar South Florida disappearance notes that six out of 10 people with dementia will wander at least once, and that missing seniors on foot are typically found within 1.5 miles of where they vanished. A vehicle can expand the area in which a missing person may be sought.
Statewide Alert Rules Hinge on Vehicle Details
That is also why vehicle details like Zambrano's gray Honda Odyssey and its HTNA78 plate carry extra weight in Florida's alert system. To qualify for a State Silver Alert, which activates dynamic highway message boards managed by the Florida Department of Transportation, a missing person must be traveling in a motor vehicle with a known description and plate number, per guidance from the Florida Department of Law Enforcement. Those electronic signs can remain displayed on state roadways for up to six hours per activation, giving drivers across the region a chance to spot the vehicle described in the bulletin.
Under Florida Statute § 937.021, law enforcement agencies cannot enforce any mandatory waiting period before accepting a missing person report, and they must enter missing adult reports into state and national databases immediately upon taking the report. The statute outlines procedures for handling missing-person reports.
A Pattern of Searches Across Miami-Dade
Zambrano's disappearance adds to a string of recent cases involving missing older adults across Miami-Dade County, including searches for an 87-year-old man missing since a Sunday and a 79-year-old woman, Lydia Bermudez, reported missing earlier this month. Those bulletins, like the one involving Zambrano, now originate from the Miami-Dade Sheriff's Office rather than the former Miami-Dade Police Department, following the county's January 2025 transition to an elected sheriff under Rosie Cordero-Stutz, as documented by WLRN.
No information about Zambrano's direction of travel or any confirmed sightings has been released. Anyone who spots the gray Honda Odyssey with plate HTNA78, or who has information about Zambrano's whereabouts, is urged to contact MDSO Deputy F. Owens or Miami-Dade Crime Stoppers using the numbers above.
