TULSA, Okla. (AP) — Investigators were trying to determine Thursday what led a 23-year-old man to pull a handgun in a downtown Tulsa plaza and begin firing in the air, sending people fleeing for cover and leading to a clash in which he, a sheriff's deputy and a bystander were shot and wounded.
Some of those sent scurrying from the plaza between the Tulsa County Courthouse and the library Tuesday afternoon found cover inside and watched the drama unfold. After a burst of gunfire, the young man lay wounded, bleeding from his upper body onto the patchwork of concrete tiles. A sheriff's deputy and a bystander suffered nonlife-threatening injuries.
In this photo provided by John Fancher of the Tulsa City-County Library, a sheriff's deputy, back right, aims his weapon toward a gunman on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, a man holds a gun as sheriff's deputies and other law enforcement surround him on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. A sheriff's deputy and two other people were later wounded during an exchange of gunfire with the man, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, a man holds a gun as sheriff's deputies and other law enforcement surround him on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. A sheriff's deputy and two other people were later wounded during an exchange of gunfire with the man, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, a sheriff's deputy, back right, kneels on the ground during an exchange of gunfire with a shooter, left, on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, a sheriff's deputy, back right, aims his weapon toward a gunman on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, a sheriff's deputy, back right, points his weapon toward a gunman, left, who falls to the ground on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, a man lies on the ground after being wounded in an exchange of gunfire with law enforcement officers on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The man, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, sheriff's deputies surround a man who was wounded in an exchange of gunfire with law enforcement officers on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The man, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, sheriff's deputies surround a man who was wounded in an exchange of gunfire with law enforcement officers on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, sheriff's deputies surround a man who was wounded in an exchange of gunfire with law enforcement officers on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, sheriff's deputies and other law enforcement officers handcuff a man who was wounded in an exchange of gunfire with law enforcement officers on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
In this photo provided by John Fancher of the Tulsa City-County Library, sheriff's deputies surround a man who was wounded in an exchange of gunfire with law enforcement officers on the plaza in between the library and the Tulsa County Courthouse in Tulsa, Okla. on Wednesday, March 7, 2012. The shooter, a sheriff's deputy, and a bystander were wounded during the exchange, police said. (AP Photo/Tulsa City-County Library, John Fancher)
A sheriff deputy is transported after being shot at the County Courthouse Wednesday, March 7, 2012 in Tulsa, Okla. A sheriff's deputy and two other people were wounded Wednesday afternoon during an exchange of gunfire outside a courthouse plaza in Tulsa, police said.(AP Photo/Tulsa World, John Clanton)