1,735 missing people in Florida's 7,500 lakes and 76,000 stormwater ponds
Florida is covered in water. In addition to the 7,500 lakes and 12,000 miles of waterways, a 2020 survey cited by the University of Florida found 76,000 artificial ponds for stormwater drainage in the state.
That means there are lots of places to look for clues for Florida's 1,735 missing persons cases.
Sullivan sifts through databases like the National Missing and Unidentified Persons System (NamUs), The Charley Project and Map the Missing, filtering out those who vanished with their car.
He has help sorting through the thousands of ponds where these cars could be hiding, the equivalent of Spider-Man's "guy in the chair." Her name is Shelly Ranae, and from her post in Virginia, she pores over satellite maps year by year, looking for bodies of water on routes the missing could have taken that have remained filled since the person was last seen.
These aren't always obvious. Many ponds for storm drainage in Florida are more like glorified puddles, dotting major roadways and new housing developments. Sunshine State Sonar found Sandra Lemire's car, missing since 2012, under 14 feet of water that collected in the corner of a highway onramp near Disney World.
Once they get a hit for a car on his radar, Sullivan or one of the other volunteer divers he occasionally collaborates with suits up. They brave waters with sewage, litter and sometimes alligators to crawl the dirty depths in search of someone's loved one. He said he has located nearly a dozen bodies in submerged cars since he started in July 2021, and it is always those final moments before discovery that are most intense.
"My stress level was through the roof" before he dived and found Lemire's car, Sullivan told USA TODAY. "I had to sit down, catch my breath and just calm myself down before I got in that water. ... But you have to do it ... like this is the end, we have to find out if this is her car or it's belonging to another case."