Investigator Brian Herbert suffered a heart attack while qualifying at the shooting range at 8657 Co Road 1701 in Hominy, Oklahoma.
After completing the pistol qualification, he started complaining of heartburn and feeling hot. While resting at 9:41 a.m., he fell over and went in and out of consciousness. Investigator Herbert was unable to be revived despite life-saving measures.
Investigator Herbert was a United States Army veteran and had served with the Osage Nation Police Department for seven years. During his 28-year law enforcement career, he also served with the Collinsville Police Department (Oklahoma), Logan County Sheriff’s Department (Oklahoma), Walters Police Department (Oklahoma), City of Sparta Police Department (Kentucky), Clay City Police Department, where he was an interim Chief of Police, Barnsdall Police Department (Oklahoma), and Oklahoma State University Police Department (Oklahoma). He is survived by his wife, sister, uncle, mother-in-law, and brother-in-law.
Source: ODMP
https://www.odmp.org/officer/27008-investigator-brian-herbert