The Knock Knock podcast is a true crime investigation that's more personal than most. In season one, host Jason B. Jones searches for the person who murdered his step-grandmother and assaulted her friend. He's lived without answers since age 10 and decided to pursue them. Jason conducts research that renews interest in the case. Listeners hear the unexpected conclusion.

The 65-year-old Betty and 81-year-old Kathryn were at Kathryn's home. Kathryn had a recent amputation and wasn't feeling well. Betty was spending the night with her to help. They were preparing to listen to a baseball game and go to bed when there was a knock at the door. Listeners hear the horrific events that followed. Betty's death was immediate. Kathryn displayed inexplicable strength to get help. She died months later from the attack. Kathryn's granddaughter helps Jason investigate on the podcast. Police, media, and 48 Hours noticed and got involved. Detective Bill Lott had never stopped searching. He only needed to wait for current DNA technology to develop.

Season one prompted others to contact Jason about their unsolved crimes. Season two of the podcast features one of those stories. It traces the search for the person who killed John Bellettieri. John's sister, Teresa Alimo, wanted justice and answers, especially for their mother. John was brutally murdered at a Long Island Expressway intersection in 1983. There are several unexpected occurrences in this season. The lead detective cancels a meeting with Teresa and considers closing the case. Teresa's mom dies without warning. Teresa isn't deterred. After a sequence of tragedies, she's the last one in her family to seek justice. Listeners get to follow her pursuit.

Jason is vice president of the creative departments at Integrity Music and David C Cook. His marketing and production skills make the Knock Knock podcast more compelling. The audio quality and sound effects help listeners imagine they're at the scene.