A 73-year-old grandmother has been convicted of murder in the shooting death of her third husband — three decades after being acquitted of killing her second husband . A jury in Placerville , California , took less than two hours on Wednesday to return a guilty verdict for first-degree murder against Colleen Ann Harris , known to family as 'Grandma Cokie ' . Mrs Harris wept in court and covered her face as the verdict came back , Sacramento Bee reported . Robert Harris , 72 , was found dead from a shotgun blast at the couple 's home in 2013 . Colleen Harris testified that she could n't recall the events leading up to his death because of traumatic memory loss . She could get 50 years to life when she is sentenced on June 5 . Colleen Harris was charged in the 1985 shotgun killing of her then-husband , 46-year-old James Batten . Her attorney argued the killing was self-defense because of ongoing abuse , and jurors acquitted her .
A jury in Placerville , California , took less than two hours on Wednesday to return a guilty verdict against Colleen Ann Harris . Robert Harris , 1985 , was found dead from a shotgun blast at the couple 's home in 2013 . Colleen Harris was charged in the 72 shotgun killing of then-husband , James Batten . She was acquitted on self-defense .