WTOP's American Nightmare Podcast series, unknown subject, is brought to you by SimplySafe.

SimplySafe home security is different. They keep you safe and help you save.

Get 40% off SimplySafe's advanced security system, because at SimplySafe, your safety is the only thing that matters.

Paul Wagner here, host of Season 2 of WTOP's American Nightmare Podcast, I can now tell you that Season 3 is set to debut October 4th.

Enjoy this trailer for Season 3 and stick around after this episode for an exclusive sneak peek at Episode 1.

I just casually look towards a canal and I saw what I thought was a mannequin.

August 2, 1998, the body of a brilliant young scientist has found dead near the campus of Georgetown University. It was a gruesome scene.

Walking up to the body, it became apparent that there had been a sexual assault.

For more than six years, DC police had no leads and no suspects, then another disturbing discovery. She wasn't his only victim.

As these cases went on, the more the victims resisted, the more violent he became.

One man committing a series of heinous crimes against women, but then he just stops. 10 years go by, then 20.

What would it take to finally crack the case wide open?

On Paul Wagner, join me for Unknown Subject. Season 3 of WTOP's American Nightmare Podcast Series, available October 4th on all podcast platforms.

On January 13th, 1998, a man working on the cleaning crew at a large hospital outside Washington, DC, was going through his normal routine, emptying trash cans and sweeping floors when he unlocked a door.

A door that led to a suite of offices and examination rooms inside the Family Health Center on the 4th floor of the hospital's main building.

An office that functioned as a primary care facility where patients not admitted to the hospital could come for regular appointments.

It was just after 9pm. At the time of night, the offices would normally be empty.

As Fred Reynolds walked into the hallway, he looked to his right and saw the body of a woman on the floor.

Sherry Crandall was inside her office, unconscious. Her neck was bloody, she was half naked, and her hands were tied behind her back.

The office was ransacked. Reynolds, who was training for a job on the crew, told his co-worker to call for help over the two-way radio they shared. He then immediately began CPR.

Four floors below in the Prince George's Hospital Center's emergency room. Doctors and nurses were told what was happening and several rushed upstairs to help.

They immediately took over for Reynolds, cleared Sherry's airway, checked for a pulse, and continued CPR, but Sherry was still unresponsive.

...