Nashville Police are warning residents to keep their doors locked and their eyes open for a partially nude man following a shooting early Sunday morning that left four people dead.

A man wearing only a green jacket shot three people dead at a Waffle House. One person later died at a hospital where two others are being treated for injuries. Police say the suspect fled on foot, and is still on the loose. Eye witnesses tell police he stripped his jacket off near the restaurant, went back to his nearby apartment and put on a pair of pants. He was last seen wearing only black pants.

Zoologist Lucy Cooke says humans have got it all wrong about sloths. "People think that because the animal is slow that it's somehow useless and redundant," she says. But in fact, "they are incredibly successful creatures."

Cooke is the founder of the Sloth Appreciation Society and the author of a new book called The Truth About Animals: Stoned Sloths, Lovelorn Hippos, and Other Tales from the Wild Side of Wildlife. The book aims to set the record straight on some long-held misconceptions about the animal world.

Juliana Hatfield was a darling of the '90s indie music scene. She played with Blake Babies and The Lemonheads and had a hit with the edgy pop song, "My Sister." Hatfield released a string of alternative albums since those days, full of distorted guitars and strong vocals.

When The Exorcist, based on the novel by William Blatty, came to theaters in 1973, it captured the public imagination. Or more accurately, the public's nightmares.

Exorcisms aren't just the stuff of horror movies — hundreds of thousands of Italian Catholics reportedly request them each year. But when William Friedkin directed the movie, he'd never actually seen an exorcism. It would be four more decades before he actually witnessed one.

On-air challenge: Every answer today is the name of a major-league baseball team. You tell me what they are from their anagrams.

Example: SCARY – C --> (Tampa Bay) Rays

1. SCUBA – A

2. STEAM – A

3. DRESS – S

4. DESPAIR – I

5. AGAINST – A

6. ADVERBS – D

7. COSTARS – C

8. RESTING – N

9. SEALING – I

10. STOCKIER – T

11. MINERALS – E

12. WIRETAPS – W

13. EARRINGS – I

14. THEISTICAL – I

15. NONSPATIAL – P

A menace lurks beneath the snow high up in the southern Rocky Mountains: dust. Lots and lots of dust.

This dust speeds up spring water runoff, causing intense melting and streams to peak weeks earlier than usual — which wreaks havoc throughout the alpine ecosystem. Water managers and fire forecasters alike are sounding the alarm about the consequences of less water flowing in streams and reservoirs.

At first glance the dust seems innocuous. How could something so simple undermine water infrastructure, stress wildlife and lengthen the wildfire season all at once?