Prosecutors hitting fast and hard in the trial of Dr. Mark Wangler.
The Lima anesthesiologist is accused of killing his first wife Kathy in 2006 through carbon monoxide poisoning.
The state has called nearly 20 people to the stand in three days.
In just one day eight witnesses provided testimony in the aggravated murder trial of Dr. Mark Wangler. They ranged from gas company employees to a former coworker.
Testimony began with Jim Coon of Dominion East Ohio Gas, who noticed a "V" shaped soot mark above the vent in Kathy Wangler's bedroom while investigating for carbon monoxide.
Fellow Dominion employee Jan Zuber tested the gas burning appliances in the home. He says the furnace and water heater seemed to be functioning properly. Zuber did find low levels of carbon monoxide. The levels were low enough not to harm a person.
Tyler Covert who works for Alltek Heating and Plumbing testified to cleaning the duct work in the Wangler's home in November of 2006. That's about two months after Kathy's death.
The final witness in the packed day was Sally Rhodes, a coworker of Dr. Wangler's at the Institute of Orthopaedic Surgery.
Rhodes first explained how Dr. Wangler was trained in advanced cardiac life support. So well trained, he trained others.
However, in a 911 call, Wangler told a dispatcher he started CPR on Kathy. However, Bath Township paramedics found her on an air mattress. Basic rules of CPR say a victim should be placed on a hard surface.
Prosecutors also showed Rhodes a set of journals which they say are Dr. Wangler's Rhodes said the handwriting looked like Wangler's. However, Rhodes also acknowledge she hadn't seen Dr. Wangler's handwriting in about seven years.
