NASHVILLE-The Tennessee Bureau of Investigation has arrested a fifth individual in an ongoing assault investigation at the Middle Tennessee Mental Health Institute.

Today, deputies in Pasco County, Florida arrested 36-year-old Gregory Arnold at his Port Richey home without incident.

In May of 2013, Commissioner Doug Varney requested the TBI to open a case into an incident in which a patient was assaulted. The investigation revealed five former employees, who were psychiatric technicians at the time, kicked the patient in the face and struck the patient multiple times in the chest. The patient was housed at the facility for a court-ordered competency evaluation.

On March 21, 2014, the case was presented to a Davidson County Grand Jury, which subsequently returned indictments for all five former employees. They all have been charged with Assault and Official Oppression.

Those previously arrested and charged include Edward Fisher, age 49 of Gallatin, Jonathan Hambrick, age 33 of Lebanon, Mark Williams, age 52 of Nashville, and Charles Woods, age 48 of Old Hickory.

At the time of this release, Arnold was in the Pasco County Jail, soon to face extradition to Tennessee.

Gregory Arnold