Onlookers observe the scene outside Clackamas Town Center in Clackamas, Ore., where a shooting occurred Tuesday, Dec. 11, 2012. A gunman opened fire in the Portland, Ore., area shopping mall Tuesday, killing at least one person and wounding an unknown number of others, sheriff's deputies said. (AP Photo/The Oregonian, Bruce Ely) MAGS OUT; TV OUT; LOCAL TV OUT; LOCAL INTERNET OUT; THE MERCURY OUT; WILLAMETTE WEEK OUT; PAMPLIN MEDIA GROUP OUT

Onlookers observe the scene outside Clackamas Town Center in Clackamas, Ore., where a shooting occurred Tuesday, Dec. 11, 2012. A gunman opened fire in the Portland, Ore., area shopping mall Tuesday, killing at least one person and wounding an unknown number of others, sheriff's deputies said. (AP Photo/The Oregonian, Bruce Ely) MAGS OUT; TV OUT; LOCAL TV OUT; LOCAL INTERNET OUT; THE MERCURY OUT; WILLAMETTE WEEK OUT; PAMPLIN MEDIA GROUP OUT

Shoppers wait to be evacuated outside the scene of a multiple shooting at Clackamas Town Center Mall in Clackamas, Ore., Tuesday Dec. 11, 2012. A gunman is dead after opening fire in the Portland, Ore., area shopping mall Tuesday, killing two people and wounding another, sheriff's deputies said. (AP Photo/Greg Wahl-Stephens)

A family leaves the scene of a multiple shooting at Clackamas Town Center Mall in Clackamas, Ore., Tuesday Dec. 11, 2012. A gunman is dead after opening fire in the Portland, Ore., area shopping mall Tuesday, killing two people and wounding another, sheriff's deputies said. (AP Photo/Greg Wahl-Stephens)

Clackamas County sheriff's Lt. James Rhodes speaks to the media outside the scene of a multiple shooting at Clackamas Town Center Mall in Clackamas, Ore., Tuesday Dec. 11, 2012. A gunman is dead after opening fire in the Portland, Ore., area shopping mall Tuesday, killing two people and wounding another, sheriff's deputies said. (AP Photo/Greg Wahl-Stephens)

Clackamas County sheriff's Lt. James Rhodes speaks to the media outside the scene of a multiple shooting at Clackamas Town Center Mall in Clackamas, Ore., Tuesday Dec. 11, 2012. A gunman is dead after opening fire in the Portland, Ore., area shopping mall Tuesday, killing two people and wounding another, sheriff's deputies said. (AP Photo/Greg Wahl-Stephens)

Police and medics outside the scene of a multiple shooting at Clackamas Town Center Mall in Clackamas, Ore., Tuesday Dec. 11, 2012. A gunman is dead after opening fire in the Portland, Ore., area shopping mall Tuesday, killing two people and wounding another, sheriff's deputies said. (AP Photo/Greg Wahl-Stephens)

Media gather around Clackamas County sheriff's Lt. James Rhodes during a news conference at the scene of a multiple shooting at Clackamas Town Center Mall in Clackamas, Ore., Tuesday Dec. 11, 2012. A gunman is dead after opening fire in the Portland, Ore., area shopping mall Tuesday, killing two people and wounding another, sheriff's deputies said. (AP Photo/Greg Wahl-Stephens)

Law enforcement personnel work the scene of a shooting at the Clackamas Town Center in Clackamas, Ore. Tuesday, Dec. 11, 2012. A gunman opened fire at the Portland, Ore., area shopping mall Tuesday, killing at least one person and wounding an unknown number of others, sheriff's deputies said. (AP Photo/The Oregonian, Bruce Ely) MAGS OUT; TV OUT; LOCAL TV OUT; LOCAL INTERNET OUT; THE MERCURY OUT; WILLAMETTE WEEK OUT; PAMPLIN MEDIA GROUP OUT

Law enforcement personnel work the scene of a shooting at the Clackamas Town Center in Clackamas, Ore. Tuesday, Dec. 11, 2012. A gunman opened fire at the Portland, Ore., area shopping mall Tuesday, killing at least one person and wounding an unknown number of others, sheriff's deputies said. (AP Photo/The Oregonian, Bruce Ely) MAGS OUT; TV OUT; LOCAL TV OUT; LOCAL INTERNET OUT; THE MERCURY OUT; WILLAMETTE WEEK OUT; PAMPLIN MEDIA GROUP OUT

Police and medics outside the scene of a multiple shooting at Clackamas Town Center Mall in Clackamas, Ore., Tuesday Dec. 11, 2012. A gunman is dead after opening fire in the Portland, Ore., area shopping mall Tuesday, killing two people and wounding another, sheriff's deputies said. (AP Photo/Greg Wahl-Stephens)