The wife of Justin Harris, who is accused of murdering their 22-month-old son by leaving him to die in a hot car, has filed for divorce, according to court records.
Leanna Harris has been separated from her husband since the toddler's June 2014 death.
She said in a Wednesday court filing their marriage is "irretrievably broken," reported Fox5 in Atlanta.
The Georgia man is accused of intentionally leaving his son, Cooper, who was strapped in a car seat, inside a locked car for nearly seven hours.
Harris told investigators the death was an accident and he had forgotten to take his son to day care. Authorities said the father was sending lewd texts to several women on the day his son died, and advocated a "child-free" lifestyle.
Leanna Harris and her husband both did online research about child deaths in hot cars, but she was not named as a suspect, authorities said.
She had stood by her husband when he was arrested on the day of their son's death, saying he had not meant to kill Cooper. Authorities said the temperature inside the SUV reached 120 degrees.
The father has been held without bail. His trial is scheduled to begin April 11.