The incident at the Naples Zoo resulted in the tiger biting the man and being fatally shot.
A sheriff's deputy shot Eko, an 8-year-old Malayan tiger, when he wouldn't let go of the arm of a cleaning service employee who reached into his enclosure.
Elsa is now living the good life at Black Beauty Ranch in Texas.
The big cats are also showing symptoms such as coughing and lack of appetite.
“These sightings are extremely encouraging for the future of tigers in our country and beyond,” a Thai official said.
Scientists have some issues with Netflix's hit documentary on zookeeper Joe Exotic.
The NBA legend is "not friends" with Joe Exotic, he said.
News of the deaths comes three years after nearly 150 tigers were removed from Tiger Temple over trafficking and abuse claims.
The Chinese government has “signed a death warrant for imperiled rhinos and tigers in the wild," environmentalists warned.
Tigress known as T-1 and two cubs may have killed as many as 13 people.