A serial killer posing as a photographer is responsible for at least two deaths, but confesses to many more.

Source: Investigation Discovery

In 1998, when 8-year old Maddie Clifton's body was found under her neighbor's bed, her 14-year old friend Josh Phillips confessed. He was found guilty and sentenced to life in prison without parole. But why did Josh kill? Peter Van Sant has the story.

Source: Investigation Discovery

After two decades, Amy Weidner's murder is once again under investigation. Joining the cold case squad is a determined detective far more familiar with liquor law violations than violent crimes. Would he be able to crack the case? Troy Roberts reports.

Source: Investigation Discovery

In February 2000, Jane Dorotik's husband of 30 years, Bob, disappeared after a jog near his San Diego home. Bob's body was found the next morning. He had been beaten and strangled. Investigators believe Jane did it. Erin Moriarty is the correspondent.

Source: Investigation Discovery

10-year-old Krystal Surles was attacked in bed by an intruder who cut her throat and killed her friend. She survived and helped police catch the murderer. At his trial, Krystal's chilling testimony would seal his fate. Harold Dow reports.

Source: Investigation Discovery

When killer and rapist Wesley Miller didn't get life in prison for the murder of Retha Stratton, her sister and friend believed that he would kill again. They decided to do everything possible not to let that happen. Susan Spencer is the correspondent.

Source: Investigation Discovery

When Peter and Joan Porco were attacked in bed with an ax, Peter died but Joan survived. Joan seemed to indicate to police that her son Christopher did it, something she would not recall later. What would a jury believe? Peter Van Sant reports.

Source: Investigation Discovery

In 2004, Charlie Brandt and his wife Teri sought refuge from a hurricane at the Orlando home of Teri's niece. Days later, all three were dead. The investigation uncovered a dark family secret that helped solve the case. Susan Spencer has the story.

Source: Investigation Discovery

When motivational speaker Jeffrey Locker was found dead in his car in a rough New York City neighborhood, the NYPD had some theories of what happened to him. But then they discovered a motive that they never expected to find. Richard Schlesinger reports.

Source: Investigation Discovery

A young banker, David Harmon was murdered. Investigators believed, but couldn't prove that Melinda, his wife, and her boyfriend Mark Mangelsdorf were responsible. Now, police are using new technology to build a case. Hannah Storm is the correspondent.

Source: Investigation Discovery

Danielle Thomas was found dead in the apartment she shared with her boyfriend Jason Bohn. The relationship had become abusive and Bohn was charged with murder. Bohn's lawyers blamed mental illness. What would the jury believe? Troy Roberts reports.

Source: Investigation Discovery