Former MLB pitcher on trial for murder. New evidence in Karen Read. Plus, testifying anonymously.

Listen to this week's episode of the Dateline: True Crime Weekly podcast with Andrea Canning. In Placer County, California, a former MLB pitcher is on trial for gunning down his in-laws at their home. He says he didn't do it.  A new expert testifies at the Karen Read retrial about data pulled from Read's car. He says it nails down the prosecution's timeline of what happened. Updates on the Menendez brothers and Lori Vallow Daybell. Plus, an attorney talks about witnesses who testify anonymously.