TACOMA, Washington (AP) -- At first it sounded like a kiosk had fallen over in the Tacoma Mall, but then people started screaming and Stacy Wilson spotted the gunman."He was walking backward and shooting. I couldn't see his face," Wilson, 29, said Sunday afternoon. "Everyone was running and screaming."Wilson ran with a group of women into a Victoria's Secret store and crouched behind a wall. She heard 15, maybe 20 shots. Then the shooting subsided, and a store employee ran to shut a security gate.In the Sam Goody music store down the hall, another crisis was playing out Sunday afternoon. The gunman had ducked inside and was holding three people hostage. Nearly four hours would go by before the gunman finally walked out and surrendered to a SWAT team.Tacoma Police spokesman Mark Fulghum said the suspect was a young man, but he had no other details about him or any possible motives.Police were interviewing the victims and hostages Sunday to determine what happened, he said. Six people were injured, at least one of them critically, authorities said.During the standoff at the music store, employee Joe Hudson was able to pick up a phone call from The Associated Press and say he and others had been taken hostage. He said little more but could be heard telling others that he was talking to the AP.Susan Serveau said she also called her daughter, Kathy Riggans, 24, a manager at Sam Goody, as soon as she heard about the shooting."She was upset and scared. She was crying," Serveau said, waiting for her daughter Sunday in a parking lot near the mall. "All she would say was that she was OK."Authorities said they began getting calls about 12:15 p.m. that shots had been fired in the sprawling shopping mall. The first caller said there was a gunman, "He was in the mall, walking along, firing," Fulghum said.State Patrol and police units from nearby agencies clustered around an entrance at the south end.Betz Dejarnatt, who works at the J.C. Penney store, said workers were herded into dressing rooms and offices, then police took them outside to a parking lot.Officials weren't likely to release the man's identity or any other details Sunday night, Fulghum said.Six people were taken to hospitals, most with minor injuries, according to Tacoma Fire Department Deputy Chief Jon Lendosky. One person was in critical condition at Tacoma General Hospital, spokesman Todd Kelley said.Copyright 2005 The Associated Press. All rights reserved.This material may not be published, broadcast, rewritten, or redistributed.