On the way out, Lund said, he saw a woman's body face-down at the entrance to Pottery Barn Kids and a man's body on the floor in the mall's east-west corridor. "There were a lot of blown-out store windows and shotgun shell casings all over the floor," Lund said. "It was quite surreal."

The victims were found throughout the 239,000-square-foot shopping mall.

Outside, streets were blocked as police swarmed the four-block scene. Dozens of people lingered on the sidewalk, many wrapped in blankets, as they talked about what they had seen inside.

The two-story mall, southeast of downtown, is a refurbished trolley barn built in 1908, with a series of winding hallways, brick floors, wrought-iron balconies and about 80 stores, including high-end retailers such as Williams-Sonoma and restaurants such as the Hard Rock Cafe.

Antiques store owner Barrett Dodds, 29, said he saw a man in a trench coat exchanging gunfire with a police officer outside a card store. The gunman, he said, was backed into a children's clothing store.

"I saw the shooter go down," said Dodds, who watched from the second floor.

Four police officers — one an off-duty officer from Ogden and three Salt Lake City officers — were involved in the shootout with the gunman, Snyder said. She provided no other details.

Barb McKeown, 60, of Washington, D.C., was in another antiques shop when two frantic women ran in and reported gunshots.

"Then we heard shot after shot after shot — loud, loud, loud," said McKeown, saying she heard about 20. She and three other people hid under a staircase until it was safe to leave.

The mall was purchased in August by Scanlan Kemper Bard Cos. of Portland, Ore., from Simon Property Group for $38.6 million. The company said it planned to invest $80 million, attract a new anchor tenant and possibly add condominiums.

"We are devastated and shocked by this senseless, random act of violence and tragedy at Trolley Square, owner Tom Bard said in a statement posted on the KSL-TV Web site. "At this time our greatest concern and prayers are with the victims, their families and loved ones."

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Associated Press writer Doug Alden in Salt Lake City contributed to this report.