Dramatic closings in the tech exec trial. Debate over DNA analysis in a quadruple homicide. And Dennis Murphy on Amanda Knox.

A jury in San Francisco begins deliberations in the trial of the accused killer of the Cash App co-founder. And in suburban New Jersey, an innovative method to analyze DNA is on trial in the case of a man accused of killing his brother and his brother's family. Plus Dennis Murphy recounts his early reporting on the Amanda Knox case.


Find out more about the cases covered each week here: www.datelinetruecrimeweekly.com