On tonight's episode of the Nightline podcast, an ABC exclusive: Bill Cosby responding to questions after a wave of sexual assault allegations. YouTube stars with millions of fans: the guys of "Dude Perfect" rack up some more trick shots with Juju Chang. And, the finalists for this year's 'Top New Artist' at the Billboard Music Awards may be very different musically, but they share some common bonds...

On tonight's episode of the Nightline podcast, a woman comes forward after years of silence. She claims she was sexually assaulted by a renowned Hollywood acting coach. How does the woman try to prove her alleged attacker was in fact guilty? Plus, accidental genius? It sounds like the script to a movie, but it's true. How did a near-fatal accident turn one person's mind into an extraordinary one? And Juju Chang shows us that she has even more skills than we could have ever imagined.

On tonight's episode of the Nightline podcast, new details emerging about the engineer operating Amtrak 188. The lawyer making a statement on behalf of the 32-year-old. What shocking claim did he make, and could the deadly crash have been prevented? The challenges associated with living a rock and roll lifestyle are harder than preceived, just ask Creed's lead singer Scott Stapp. He told ABC's Matt Gutman about the hardships he's dealt with, including an undiagnosed mental illness. And Nightline will reveal to you a buried treasure like you've never heard about before.

On tonight's episode of the Nightline podcast, Amtrak 188: Tragedy on the Tracks. A deadly crash in Philadelphia. Learn how to retire at 30 from the man who's living proof it's possible--without winning the lottery. And, a whole new world of addiction in 'virtual porn.'

On tonight's episode of the Nightline podcast, caught on camera: a heated interaction between a young autistic passenger and United Airlines staff ends in an emergency landing--now, an alleged case of discrimination for an already troubled industry. George Clooney on his new love -- and his new movie, too. And ABC takes a swim in an underwater utopia on the other side of the globe. 

On tonight's episode of the Nightline podcast, tips from a career "prowler" on how to protect yourself from a home invasion. A former member of a breakaway Mormon sect talk's to Nightline's Dan Harris about her long battle for custody of her children--and we'll hear why life in the "normal" world is a tough adjustment for her kids. Plus, Sam Smith, canceling tour stops over a critical vocal condition. 

On tonight's episode of the Nightline podcast, the FBI Director is sounding the alarm on ISIS, saying their social media campaign has dug its roots on American soil. How are the group's high-tech recruiting efforts working so well? And going behind the scenes with Mariah Carey. How is she preparing for her big Vegas show, and what lessons has she learned from the end of her marraige? And Shaquille O'Neil takes a tumble, and provides a useful lesson for all of us on how to take a joke.

On tonight's episode of the Nightline podcast, a college woman has catapulted a term into an Internet viral status: Dad Bod. What exactly is the "Dad Bod," and how has it become the newest Internet sensation? Nightline will tell you. Most know Wendy Williams and her electric television personality, but who is Wendy Williams the wife, the mother, the Jersey Girl? Nightline's Byron Pitts shares the intimate details of Williams' life. Plus, questions looming as to how steep of a penalty Tom Brady and the Patriots are facing for their involvement in Deflategate.

On tonight's episode of the Nightline podcast, a South Carolina student puts Windex in her roommates' food, and it's all caught on tape. Nightline examines the student's motives and why you have to be extra cautious with whom you sign your apartment lease. The Mayweather-Pacquiao fight may have been a letdown, but there's another side of boxing that's looking to grow in popularity. And how is "Keeping Up With The Kardashians" delving deep into a major cultural issue? Nightline has all the details.

On tonight's episode of the Nightline podcast, a scene that could have been so much worse in Texas, as a lone officer faced down two heavily armed terrorists. Why wasn't one of the gunmen stopped when he was being watched by the FBI for nearly a decade? And with Mother's Day around the corner, one mother surprises a friend in one of the most loving ways you could think of. And want to fly more comfortably? You can... that is, if you're the President of the United States.