Audio of a jailhouse sting. A woman's third murder trial in three decades. And the latest on a new texting scam.

An officer goes undercover with an alleged killer in the Hollywood hair stylist case. We're listening in. A woman's third murder trial in three decades is underway. This time, she's acting as attorney and defendant — and cross-examining her own children. We've got updates on Karen Read and Adnan Syed, and a verdict in Hawaii. Plus, the latest on a new texting scam targeting drivers. Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com