Defendant Jennifer Crumbley, left, speaks with her attorney during her jury trial at the Oakland County Courthouse in Michigan.
Jennifer Crumbley, left, speaks with her attorney during her jury trial at the Oakland County Courthouse in Michigan.
  • A judge will allow evidence of Jennifer Crumbley's affair into her trial.
  • Crumbley and her husband face involuntary manslaughter charges related to their son's shooting.
  • The Crumbley's son pleaded guilty to carrying out a school shooting in Oxford, Michigan in 2021.

The jury in Jennifer Crumbley's manslaughter trial is hearing evidence about her Costco parking lot love affair after the judge on Wednesday reversed her decision to keep it out of court.