Deputy Constable Mark Diebold suffered a fatal heart attack following qualifications for the agency’s tactical team.
Members of the tactical team immediately began CPR when he collapsed following the qualifications. He was transported to Alliance Medical Center where he was pronounced dead.
Deputy Diebold had served with the Tarrant County Constable’s Office – Precinct 5 for nine years and had previously served with the Tarrant County Sheriff’s Office for 14 years. He is survived by his wife and children.