Maddie stopped responding to texts and calls, which was uncharacteristic of her, and failed to pick up her kids from daycare.
They found Maddie's cell phone, purse, jacket, and laptop at the house, items she would not have left behind if she had left voluntarily.
Footage showed a person removing and replacing Maddie's license plate, driving her van, and returning it to the driveway, actions Adam did not mention in his account.
Her body was found in a culvert on a property routinely maintained by Adam Fravel's family, suggesting a connection to him.
Prosecutors argued that financial stress and the potential loss of Maddie's financial support, as well as her $170,000 death benefit, motivated Adam.
The defense claimed investigators focused too much on Adam and ignored other potential suspects, and argued that the stories of abuse were unreliable.
Adam Fravel was found guilty on all counts, including two counts of first-degree murder, carrying a mandatory sentence of life in prison.