Nancy Grace, Derrick Levasseur, and Mara S. Campo tear through the evidence and clues, demanding justice for the victims of the biggest crime stories in this weekly exposé.

Gripping clips of kidnappings, break-ins, car chases, violent road rage incidents and other crimes rack up millions of views. But crimes gone viral goes beyond the jaw-dropping footage to tell the full story. Viral video of good samaritans who intervene to stop crimes, brave victims who fight back against their attackers, clever prison escapes and a shark heist.

Former Rhode Island police Sgt. Derrick Levasseur and forensic psychologist Kris Mohandie answer the pleas of desperate families and investigate murder cases that have officially gone cold.

After examining evidence both old and new, the team questions O.J.’s role in the crimes. Was he involved in these murders…or was another person was responsible? Dr. Henry Lee, a forensics expert from the original investigation, discusses the confounding details and problems with the preliminary evidence collection from the crime scene, and what impact that may have had on the trial.

American version of the reality game show which follows a group of HouseGuests living together 24 hours a day in the "Big Brother" house, isolated from the outside world but under constant surveillance with no privacy for three months.

American version of the reality game show which follows a group of HouseGuests living together 24 hours a day in the "Big Brother" house, isolated from the outside world but under constant surveillance with no privacy for three months.