When college radio host Mackenzie Walker gets obsessed with a cold case, the murder of an equestrian and animal rights’ activist, she broadcasts her findings on her show. The confessed killer’s been in prison for the last 18 years, but Mackenzie has a feeling that the wrong person is behind bars. Before long, Mackenzie is in too deep, and the investigation goes places she could never have imagined. This is a riveting Serial Box original podcast from the authors Gwenda Bond, Carrie Ryan, and Rachel Caine