MARIETTA - A Cobb County judge has rejected a motion by attorneys for a Forsyth County woman charged with poisoning her husband with antifreeze to dismiss what they called pseudo-scientific evidence in the upcoming murder trial.
Attorneys for Lynn Turner, 35, of Cumming argued Saturday that there are no universal scientific standards for testing poison by ethylene glycol _ the sweet, odorless chemical commonly found in antifreeze.
"There is no real standard in the scientific community for really determining what amount (of ethylene glycol) may cause death," attorney Jimmy Berry said at a hearing in Marietta.
Turner has been charged in the 1995 poisoning death of her husband, 31-year-old Maurice Glenn Turner, a Cobb County police officer.
Turner also is suspected of killing her boyfriend, Forsyth County firefighter Randy Thompson, 32, in the same way. She has not been charged in his 2001 death.
Berry told Superior Court Judge James Bodiford that scientists have not agreed on how much ethylene glycol is needed to kill someone, or whether ethylene glycol can only be found in antifreeze.
But Dr. Mark Koponen, the state's deputy chief medical examiner, said 100 milliliters, or what another medical examiner earlier described as a third of a Coke can, was enough to kill most humans.
Koponen said any sign of ethylene glycol in a body suggests poisoning because the chemical rarely occurs naturally.
Turners trial is scheduled to begin Feb. 2.