they delved into nici's last known movements >> when was the last time you saw nici?m work. she was sleeping. >> david pietz told detectives that nici was sleeping when he arrived home late friday night. and by the morning, she was already gone, off to her special aa celebration, he assumed. >> i just remember thinking that's where she must be when i woke up. >> but when she didn't show up to the dinner party that night, he returned to their condo to look for her. he described how her purse, car keys, and grey jetta were gone. but he said something else caught his eye. and it would turn out to be a big clue for detectives. nici's vial of percocet was sitting out on the counter. the bottle is empty. the 56 pill prescription, filled just two days before, gone. >> because i saw the pill bottle and i freaked out. i was so scared she'd relapsed. that's a lot of pills. and i thought maybe she od'd or something. >> as detectives wrapped up the interview with the husband, a narrative was starting to come together about the victim of a former addict, possibly re-addicted. how

they are all per tomforming nicy healthcare with slim losses. back to you, frank. >> carolin roth, thank you. >>> time for the check on the top corporate stories with silvana henao. silvana, good morning. >> frank, good morning the faa says inspections of the initial group of 40 737 max 9 jets were complete the agency will thoroughly review the data and convene what it calls a corrective action review to decide if the planes can resume flying passengers >>> former meta platforms chief sheryl sandberg is leaving the board. she has served as a board member since 2012 her departure from the company in 2022 followed a series of controversies that hit the stock especially with the disinformation in the 2016 presidential election. >>> as promised, apple will remove the blood oxygen sensing feature from the series 9. this after the u.s. appeals court lifted the stay on the sales ban allowing masimo to prevail in the lawsuit modified versions of the watches go on sale today. >>> thank you, silvana the major averages finishing in the red. the recent data

i mean, nici was such a good person. >> the hardest question always the why. the coldest fact, the young woman gone too soon. >> that's all for this edition of dateline. i'm craig melvin. thank you for watching. hello, i'm craig melvin. and this is dateline. >> it was rough, it was a rough time for the whole community. >> it hit her town like a lightning bolt. the strange disappearance of carrie olson. >> it was scary. everyone loved carrie. >> it was so painful. >> you reach out to dateline? >> i did, yes. we started getting people following our page. >> where was she? what was behind this? far from home early. >> i saw the tattoo and i said, that's her tattoo, isn't it? >> and three caught on camera clues. someone's in her car. someone's at her back. but, most jaw-dropping of all, someone is up onstage with a song turned sinister. >> i couldn't believe what i was hearing and seeing. >> could karaoke be a key to this case? >> my heart was pounding and pounding. >> i was sweaty and nervous. we need to figure this out, fast. hello, and welcome to dateline. 29 y