Louisa Merrifield took advantage of her employer by murdering her in cold blood.
For more than two decades, Massachusetts authorities have been hunting for a killer...
The string of killings still haunt Gilgo Beach.
"Each body was cut into as many parts as there are joints."
Investigators uncovered a truly disturbing scene...
The pioneering forensic specialist solved gruesome crimes and created new investigative methods.
Mary Rose Craver knew something was terribly wrong...
It's known for its untouched wilderness and shockingly high rate of murderers.
It's one of the most shocking crimes imaginable...
Gypsy was a murderer, investigators say, but she was also a victim of Munchausen syndrome by proxy.
Did the sadistic "Murder Castle" serial killer fake his own death in 1896?
Her death remains one of the most mystifying cold cases in the state of Arkansas.
Dead men do tell tales—especially at Tennessee's Body Farm, where dozens of cadavers are studied as they decay.
Was this peace-loving hippie really a cold-blooded killer?
In 1996, Kristin Smart vanished without a trace. To this day, the case remains unsolved.