WICHITA (AP) – Sedgwick County authorities say a man who died after an attempted robbery shot himself in the head.

Sheriff Jeff Easter says the suspect, 26-year-old Horace Gwyn, was also shot by a sheriff’s deputy after he ran from the Credit Union of America early Wednesday. But the county coroner ruled a self-inflicted gunshot wound was the cause of death.

Police say Gwyn ambushed two workers who opened the credit union. When he forced them into a bank vault, a silent alarm went off, and a nearby deputy responded.

When the deputy arrived, Gwyn ran out of the bank. Easter says Gwyn fired at the deputy then turned and raised the gun to his head. The deputy fired, hitting Gwyn in the back at the same time Gwyn shot himself.

Here is the timeline released by the Sedgwick County Sheriff’s Office.

Time Line From Sedgwick County 911.

7:22 a-m, Dispatch receives an alarm notification from the Bank at 1920 South Seneca.

7:23 a-m, Dispatch puts call out to officers and broadcasts alarm on all channels.

7:25 a-m, Deputy arrives in bank parking lot.

7:27 a-m, Deputy reports suspect running to the West

7:28 a-m, Deputy reports he sees a gun.

7:28 Deputy reports shots fired.

7:29 Deputy reports suspect down.