CNN -- We're learning more about the online activities of Justin Ross Harris, the Georgia man accused of leaving his 22-month-old son to die in a hot car.
Harris pled not guilty to murder and child cruelty charges in this case.
As victor blackwell reports, investigators have found more Internet posts that could come up during his trial.
Cobb County detectives say Harris read suspicious topic pages on a site called Reddit, called subreddits, reading subreddits on being child-free, and how to survive prison.
Hundreds of comments, spanning three years under the name Roscoe UA, the most recent posted just hours before Harris' arrest.
The video goes into more detail about the posts, recommendations, and details of Harris' life.