CLAYTON COUNTY, Ga. -- A father was sentenced to 100 years in prison for poisoning his children Thursday.

A Clayton County jury found William Cunningham guilty on all seven counts of aggravated assault and cruelty to children.

Cunningham spiked his children’s soup with prescription drugs and lighter fluid in a plot to get money from Campbell’s Soup in 2006. They nearly died.

Overcome with emotion, the children’s mother and grandmother said they now have justice for Miranda and Billy Cunningham.

“I was so proud of that jury,” said Janet Dockery, the children’s grandmother.

William Cunningham was found guilty Thursday of poisoning his 18-month-old daughter and 3-year-old son with soup laced with prescription drugs and lighter fluid, not once, but three times.

“The third time, he forced it down them and this is the one that put the kids in the hospital and made them deathly sick,” said Ron Dockery, the children’s grandfather.

The 100-year prison sentence is fitting, according to the Janet Dockery.

“I hope you get what you deserve when you are in there,” she said Thursday. “They should serve him lighter fluid every night.”

“Who would think your husband or the father of your kids would to that? At the time, I didn’t know,” said the children’s mother, Rhonda Cunningham.

Officials said William Cunningham’s motive was that he wanted to extort money from Campbell’s Soup.

Channel 2 Action News reporter Diana Davis asked Ron Dockery why he thought William Cunningham would poison his children. Dockery replied, “Money. Just money. Greed.”

Both children survived but may have lifelong breathing problems from swallowing the lighter fluid.

“That chemical has scarred their lungs,” said Janet Dockery.

The family said the little girl has no memory of what happened. The little boy, now 6 years old, does. He caught a glimpse of his father’s mug shot in the newspaper.

“And he said, ‘Mama, I think that’s my old daddy,’” said Janet Dockery. “I said, ‘No baby, that’s not your daddy.’ I played it off to something else but he said, ‘Yeah, that’s soup daddy.’ That’s what he calls him…soup daddy.”

Cunningham was also convicted at an earlier trial in federal court. The children’s mother has since divorced him.