the prosecution's case against rod covlin ended with a bombshell. in order to regain custody of his children. his alleged targets where in the courtroom, hanging on every word. now the defense was about to dissect deborah story. here's andrea canning with the conclusion of "endgame". >> carol cullen sat behind her son during the long weeks of trial. >> why was it so important for you to be? >> there it's my son. and i think any mother would be there for their child. >> you have to listen to your son being called a philanderer, and abuse are, and a killer. how did you handle? that >> i really wanted to get up and scream at them and call them liars, but she can't. >> one of the most explosive pieces of testimony was debra oles alleging that rod had wanted to kill you. and in grand fashion, we're talking arsenic, right boys in. >> rods that, dave, said deborah's claims were laughable. the alleged murder plots are think our force. >> ross defense attorney agreed. during a testy examination he tried to poke holes in debra's testimony, starting with her s

>> yes. >> other witnesses discuss rod covlin's behavior the night before the body was discovered. u were going to have a sleepover before? >> no, no. >> that's the first time he -- >> that's the first time he asked me. >> the defense portrays it as an innocent question, since covlin knew that shele was coming home late. but the prosecution says what's really strange is the idea that shele would have taken a bath that night at all. >> watch your step. >> they called to the stand adam aminov, the stylist who did shele's hair earlier in the day. >> tell us the instructions you gave shele. >> no wash, no shampoo, no gym. be careful from the rain. >> anybody who's ever had this treatment done knows you cannot get your hair wet. it's this "legally blonde" moment in this case. >> had you ever gotten a perm before? >> a "legally blonde" moment because of how similar it was to this scene in that famous movie. >> because isn't it the first cardinal rule of perm maintenance that you're forbidden to wet your hair for at least 24 hours after getting a perm at the risk of deactivating the ammoni