One Day After a Zookeeper Is Mauled by a Tiger in Florida, Another Scare Emerges in Toronto

ABC News' George Stephanopoulos reports the stories people have been buzzing about all week.
0:54 | 04/19/16

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Transcript for One Day After a Zookeeper Is Mauled by a Tiger in Florida, Another Scare Emerges in Toronto
In tonight's index, a scare at the Toronto zoo. This video shows a woman jumping into the tiger cage to fetch her hat. A tiger paces back and forth. The two separated by a fence. And when she climbed out this, confrontation with angry parents and zoo workers. The scene comes one day after a zoo keeper was mauled by a tiger in Florida. A health alert tonight. A new study warning certain medications may increase the risk of dementia. Including tablets for cold and flu, allergies and heartburn, linked to memory problem. Researchers at Indiana university say the drugs may slow brain metabolism. As always, check with your doctor about these medicines. And check out this rare sight off the west coast. A whale watcher gets more than he expected all Monterey, California, when a pack of killer whales when after a huge pod of dolphins and the dolphins raced up and out of the water. When we come back, the famous couple facing the cameras

This transcript has been automatically generated and may not be 100% accurate.

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