Police in North Port, approximately 60 miles south of Tampa, said 32-year-old John Christopher Ludwick was pronounced dead at a local hospital after 7 a.m. on Thursday.
Investigators say Ludwick attacked the unidentified woman in her driveway and was stabbed in the ensuing struggle. The kidnapper and his would-be victim knew each other, police said.

Last year, Ludwick claimed that Joran van der Sloot, the prime suspect in Holloway’s disappearance, paid him $1,500 to dig up her body in 2010, five years after the clooege bound teen vanished on the Dutch Caribbean island.
“The idea was to crush everything to the point where it wasn’t recognizable as her bones or skull or anything like that,” Ludwick said at the time. He added that Holloway’s skull was burned to eliminate any remaining hair fibers, saying: “It was doused in gasoline in a fire pit in a cave.”
Ludwick’s story was featured in “The Disappearance of Natalee Holloway,” a miniseries that aired this past September on the Oxygen network which was designed to shed light on the fate of 18-year-old Holloway who went missing in Aruba in 2005

Joran van der Sloot has long been considered a suspect in Natalee Holloway’s disappearance.
“We are aware of Mr. Ludwick’s history and comments surrounding the disappearance of Natalee Ann Holloway in Aruba during May of 2005,” North Point Police spokesman Josh Taylor stated.
“The correct authorities who are working that case have been notified.
American student Natalee Holloway vanished thirteen years ago, on May 30, 2005 while on a high school graduation trip to the Dutch Island of Aruba. A judge declared her legally dead in 2012.
No one has ever been charged in connection with her disappearance. However, Joran Van der Sloot, a Dutch national, has long been considered a suspect in the case.
Van der Sloot is currently in a Peruvian prison serving a 28-year sentence for killing business student Stephany Flores, in his hotel room in Lima. Flores was killed just five years after Natalee Holloway vanished.