Shooting

A Mesa Police officers are shown at the scene of a shooting in which police shot a suspect in the parking lot of a hotel Tuesday Nov. 1, 2011. No officers were hurt in the incident. [Tim Hacker/ Tribune]

Shooting

A Mesa Police officer walks past the scene of a shooting in which police shot a suspect in the parking lot of a hotel Tuesday Nov. 1, 2011. No officers were hurt in the incident. [Tim Hacker/ Tribune]

Shooting

A Mesa Police officers are shown at the scene of a shooting in which police shot a suspect in the parking lot of a hotel Tuesday Nov. 1, 2011. No officers were hurt in the incident. [Tim Hacker/ Tribune]

Gilbert shooting

Chandler shooting

Arizona Shooting

A rented white Kia Optima sedan is seen in a parking lot in a Phoenix suburb that was likely driven by shooting suspect Arthur Douglas Harmon, in Mesa, Arizona on Thursday, Jan. 31,2013. A body matching Harmon's description was found nearby with an apparent self-inflicted gunshot wound, spokesman Sgt. Steve Martos said. Harmon is a suspect in a mass shooting that killed a man and critically wounded another. (AP Photo/Jacques Billeaud)

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say a gunman shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say someone shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say someone shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say a gunman shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say someone shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say a gunman shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say someone shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say someone shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

Police officers leave an office building after a shooting at the building in Phoenix on Wednesday, Jan. 30, 2013. A gunman opened fire at the Phoenix office building, wounding three people, one of them critically, authorities said. Police were searching for the shooter. (AP Photo/Patrick Sison)

Arizona Shooting

SWAT police officers inspect the roof of an office building after a shooting at the building in Phoenix on Wednesday, Jan. 30, 2013. A gunman opened fire at the Phoenix office building, wounding three people, one of them critically, authorities said. Police were searching for the shooter. (AP Photo/Patrick Sison)

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say a gunman shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

This frame grab provided by abc15.com shows the scene at a Phoenix office complex where police say someone shot at least three people on Wednesday, Jan. 30, 2013. Officer James Holmes said the victims were taken to hospitals and did not know if their injuries were life threatening. (AP Photo/abc15.com) MANDATORY CREDIT

Arizona Shooting

People are escorted back into an office building by a police officer, second left, after a shooting at the building, background right, in Phoenix on Wednesday, Jan. 30, 2013. (AP Photo/Patrick Sison)

Arizona Shooting

A SWAT police officer leaves the scene after inspecting an office building after a shooting at the buidling in Phoenix on Wednesday, Jan. 30, 2013. A gunman opened fire at a Phoenix office building on Wednesday, wounding three people, one of them critically, authorities said. (AP Photo/Patrick Sison)

Arizona Shooting

A SWAT police officer leaves the scene after inspecting an office building after a shooting at the buidling in Phoenix on Wednesday, Jan. 30, 2013. A gunman opened fire at a Phoenix office building on Wednesday, wounding three people, one of them critically, authorities said. (AP Photo/Patrick Sison)

point and shoot

Border Shooting

U.S. Border Patrol agents lift the casket holding slain agent Nicholas Ivie during the funeral at The Church of Jesus Christ of Latter Day Saints in Sierra Vista, Ariz., on Monday, Oct. 8, 2012. (AP Photo/Arizona Daily Star,Mike Christy )

Border Shooting

Mounted officers line the route during the funeral procession for slain U.S. Border Patrol agent Nicholas Ivie on Monday, Oct. 8, 2012, at the Church of Jesus Christ of Latter Day Saints in Sierra Vista, Ariz. The head of the U.S. Border Patrol agents' union says the agent was killed when he apparently opened fire on two colleagues thinking they were armed smugglers and was killed when they returned fire. (AP Photo/Brian Skoloff)