Police: Mother of Georgia toddler also researched child deaths in hot cars

A judge will determine this week whether there's enough evidence to keep in jail a man whose son died in a hot SUV. Justin Harris is charged with murder and second-degree cruelty. Georgia police say that Harris and his wife, Leanna, told them that they conducted Internet searches on how hot a car needed to get to kill a child. CNN's Martin Savidge has more on the investigation.