Unimaginable Dateline NBC : Season 25 Episode 15

Georgia, 2014: 22-month-old Cooper Harris is found dead after being in a hot car for about 7 hours. His dad, who was the only one in the car with Cooper, and his mother exhibit suspicious behavior in reaction to their son's death. His dad, Justin Ross Harris, says he forgot to drop Cooper off at daycare and totally forgot about him being in the car. He forgets about Cooper on multiple occasions even though there are numerous things that could have (and perhaps should have) jogged his memory. Leanna Taylor, Cooper's mother, is worried and starts searching for Cooper but she seems more concerned about her husband upon learning of her son's death. The prosecution believes this is intentional homicide on the part of Ross. The defense believes it was a tragic accident and Taylor is the star witness for the defense.