(KCEN) -- A shooting spree erupted today in an office in Phoenix, Ariz. just as the Senate gathered for another gun control hearing.
At least three people were wounded in the shooting at an office in Kelly, Ariz.
A lone gunman walked into the building's lobby, got in an argument with someone, then shot several people before running off.
Witnesses say they heard nine or ten shots.
At least one person is in critical condition.
Cops are still looking for the suspect.