20岁青年在购物中心开枪射伤多人TACOMA, Wash. - A gunman opened fire inside a busy shopping mall Sunday, wounding at least six people and taking three others hostage in a music store before he surrendered to a SWAT team, authorities said. Witnesses described seeing a clean-cut man walking backward through the mall, firing a rifle. At least six people were injured, one critically, as shoppers and store clerks scrambled for cover. Dominick Maldonado, 20, of Tacoma was booked into the Pierce County Jail on six counts of assault and three counts of kidnapping, according to jail records reported by The Seattle Times and the Tacoma News Tribune. He was being held on $450,000 bail. Court records show he has an extensive juvenile criminal history dating back to 1998. He has been convicted of burglary, theft and possession of burglary tools and he had been ordered not to possess any weapons, the Times reported.