Ed. Note: Chris Halkides has been kind enough to try to make us lawyers smarter by dumbing down science enough that we have a small chance of understanding how it’s being used to wrongfully convict and, in some cases, execute defendants. Chris graduated from the University of Wisconsin-Madison with a Ph.D. in biochemistry, and teaches biochemistry, organic chemistry, and forensic chemistry at the University of North Carolina, Wilmington.
Patricia Stallings took her infant son Ryan to the hospital because of lethargy, vomiting and other symptoms. The hospital tested Ryan’s blood and found what it believed to be evidence of ethylene glycol and metabolic acidosis (his blood was too acidic). The key ingredient of antifreeze, ethylene glycol, produces low pH and can be fatal when it is ingested and metabolized into oxalate, which forms crystals with calcium ion in the brain and kidneys. Continue reading
