John Shannon was a 70-year-old attorney from Lakeland.
They are identified as 24-year-old Olivia Shannon, 26-year-old Victoria Shannon Worthington, 27-year-old Peter Worthington and 32-year-old Krista Clayton.
Local officials said first responders were dispatched to the scene within minutes but had to move slowly because of the dense fog.
An airport employee who was photographing the thick fog captured sound of the crash on video. Airport officials said the plane was fully engulfed in flames after the crash. The couple had just arrived in town on Saturday for the holidays, from Baltimore, where they live.
Victoria and her husband Peter Worthington (above) both died in the crash.
"No one should have attempted to take off in a small plane in that weather", Grady Judd, the Polk County sheriff, said at a news conference on Sunday.
"Words can not properly express the sadness felt by the Maryland Carey Law community and everyone at the University of Maryland, Baltimore over the loss of Peter Worthington, a third year law student". The newlyweds got married in June 2017.
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She was from Lakeland and was a teacher at the Jewett Academy.
On his website, Shannon said he began practising law in 1975, and had focused on "personal injury and death" cases.
Worthington was a passenger on Shannon's plane Sunday morning. In 2010 he received his pilot's license and flew regularly, including on trips to Alabama to visit a daughter in college, Liguori said. He ran for Florida state representative in 2014 as a Republican and lost in a primary election by fewer than 175 votes.
Judd said that he personally knew some of the people who died on the plane.
"Several deaths" occurred after a twin-engine plane crashed at an airport in Bartow, Fla., on December 24, 2017. Shannon's two daughters, a son-in-law and a family friend also were on board when the plane crashed around 7:15 a.m. Sunday, Dec. 24. The sheriff - at times becoming emotional while speaking of his friend - said he was told Shannon brought cookies for the Bartow airport staff.