THOMSON, Ga. (AP/WZTV Staff Report) -- A coroner has confirmed the identity of a fourth person who died when a business jet collided with a 60-foot utility pole and caught fire after aborting its landing at an east Georgia airport.
  
The plane was carrying  Dr. Steven Roth and members of his clinic staff with The Vein Guys when it went down Wednesday night at the Thomson-McDuffie Regional Airport.

The flight departed from John C. Tune airport in Nashville.
  
McDuffie County Coroner Foster Wiley said early Friday that identities of four people killed had been confirmed: Dr. Steven Roth, a vascular surgeon; nurse anesthetist Lisa Volpitto; secretary Kim Davidson; and Tiffany Porter.
  
Dr. Stephen Davis, a Nashville surgeon who works for The Vein Guys, has said Porter and the fifth person killed were ultrasound technicians.
  
Wiley said dental records would be used in an attempt to positively identify the fifth person.

The pilot and co-pilot both survived the crash.

The NTSB also briefed reporters on Friday.  Board member Robert Sumwalt says evidence shows the aircraft had a normal flight prior to the accident.  There were no distress signals or unusual comments made to Air Traffic Control.

Investigators say the plane was intact prior to the impact with the utility pole.

The NTSB has also completed a visual inspection of the runway, and investigators found nothing unusual.

Investigators continue to review some surveillance video that briefly shows the airplane on approach to Thomson-McDuffie airport.

Several witnesses have come forward.  Five of them have been interviewed.