andrea mckaren has been in the courtroom since day one. she is live once again from rockville. andrea. >> derek, the injure watched detective drury's interview taped two days before her arrest. she asked me if there was any good news referring to the investigation says montgomery county police detective. he's a veteran homicide investigator with a soothing voice and reassuring style. the lumulemon murder was to be his last active case assignment before retirement. you're one of the best sources because you were there, he tells norwood on the police video tape. norwood had been called to the police station to submit hair samples and fingerprints. detective drury, i definitely don't want to get ink in your cuts or anything. norwood, oh, it's not that bad. we now know norwood's blood was found inside jayna murray's car, which made the next line of questioning relevant. detective drury, do you know what kind of car jana drives? norwood, i don't. i saw it once. i don't know the make and model. earlier in the day, a police forensic specialist says how norwood could have bound her own