Police search for Arizona office shooter

A 70-year-old man is being hunted by the Police, suspected to have shot three people and killing one, during a dispute in Phoenix, Arizona.

Police are still searching for a gunman, Arthur Harmon, 70, after three people were shot - one fatally - during a dispute at an office complex in Phoenix, Arizona.

The shooting victims were taken to hospital after the incident on Wednesday morning where a 48-year-old man was also killed.The other two victims, a 43-year-old man and a 32-year-old woman, remain in critical condition.

Fire Captain Scott McDonald said all the victims had sustained life-threatening wounds. Officer James Holmes said police believe there is only one suspect, but witnesses gave conflicting information about how he left the scene.

According to the Police, the shooting did not appear to be a random act, as a dispute with someone at the building became heated, and the suspect pulled out a gun and started shooting.

The shooting happened as the Senate Judiciary Committee held a hearing on gun control issues, and former astronaut Mark Kelly broke news of the shooting during his testimony.