In a shocking turn of events, suspected serial killer Rex Heuermann has been charged with a seventh murder. This time, it's the murder of Valerie Mack, whose remains were discovered in New York several years ago. How did investigators link Heuermann to this latest crime? Through DNA analysis and some chilling clues found on electronic devices.

Mack's body was found in multiple plastic bags, bound with rope, and with certain body parts missing. It was a grim discovery that matched the gruesome details of Heuermann's alleged collection of violent and torturous material found on his electronic devices. A document allegedly used by him to plan out his crimes included items like rope and saws, which are eerily similar to the methods used on Mack's body.

Investigators found amitochondrial DNA from a hair on Mack's body that matched the profiles of Heuermann's wife and daughter. This, along with other evidence, has been used to strengthen the case against him. Heuermann has pleaded not guilty and his lawyers are questioning the DNA methods used.

The case has been ongoing since 2010, when the first remains were discovered. It has involved numerous victims, many of whom were sex workers. The investigation has faced numerous challenges, including the doubts about whether there was a serial killer at all. However, with Heuermann's arrest and the new charges, the case is gaining more clarity.

The families of the victims have been vocal about their ongoing pain and the importance of justice. They hope that these new charges will bring them one step closer to closure.

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