Polk County Sheriff's Office confirmed five people, including the pilot, on board the Cessna 340, "perished upon or immediately after impact." John Shannon, according to the sheriff's office, "filed a flight plan this morning to fly to Key West." His daughter, Victoria, and her husband, Peter, arrived to Florida on Saturday to celebrate the holidays. "Our thoughts and prayers are with the Shannon, Worthington, and Clayton families. The Sheriff's Office said the fog likely contributed to the crash, Fox 13 Tampa reported.
Source: Fox News December 24, 2017 18:22 UTC