Detailed text transcripts for TV channel - MSNBC - 20180326:07:47:00
>> at the end of this case you are going to hold that man accountable for exactly what he did. >> reporter: the very first witness matt murphy put on the stand was cathy's mom, mary. it seemed a safe way to start. >> there is a cardinal rule that you don't ever do a hard cross-examination on a mother. >> reporter: but matt's mentor broke that rule. >> he really pressed her on some of the details. >> and scored some points. >> scored big points. i mean, scored big-time points. >> reporter: mary initially told the jury sam only responded to one of her pages, but under cross-examination mary reve...