here again, keith morrison.bone in the same area where michelle's cell phone had briefly pinged off a nearby tower. man: you're sure it's here? keith morrison: (voiceover) but as the searchers scoured the immediate area, they understood it couldn't be her. the bits of clothing weren't right and the bone was bleached by the sun. must have been there a long time. and when they looked closely-- that's a six foot something. it's not a 5 foot 5' female. keith morrison: (voiceover) appalling, some other poor soul wound up here, but relief too it wasn't michelle. so the search and the mystery wore on for days and then for weeks. and by the middle of august, it all looked to be losing steam. on a typical san francisco summer afternoon as the fog rolled in, christine and michael brought us up to date on their efforts to find michelle. how long has it been now? it's been over two months. it's been about 72 days. how are you doing, the two of you, with all this? i mean, how are you holding up? it's just-- we're just trying

here is keith morrison with a family's story. >> it is so sad to look at them now, there's apparently normal family. a young father and his two young sons walking a postcard sure. skipping rocks across the surface. but under the surface, in the man's own skin, well, what was beneath the surface? how in the name of heaven did this come to this? >> hi my mom calling -- >> yes he exploded the house. >> do you know if anyone is in the house? >> yes, there was a man and two children. i just dropped off the children and he wouldn't let me in the door. >> you will hear an exclusive interview with the man who took that call, and who has been criticized for not getting help immediately. you find yourself vilified really what was i like? >> well, it is awful. part of the problem is i like most people, i think, i was aware of josh powell's story but i didn't associate his name with the story. >> we will retrace josh powell's last step mysterious trips to gas station a storage locker where police said they found a quote with blood on it and the bank where the surveillance photo he has the look of

here's keith morrison with the night before halloween. >> it was the night before halloween, october 30th -- midnight approaching. it happened in one of the middle class suburbs that's roll across the los angeles basin. inside a fast food franchise, closed for the night, a frantic scrambling, running feet, and then, silence the next morning, not far away, the horns family doctors prepared for a favorite celebration. kim was the eldest, then robin, trisha, and windy. excited, because this was halloween, one of the best days of the year. >> we trick-or-treat, we would sort the candy and then we would be trading what we liked. >> a halloween morning long ago, it was 1984. the morning after the incident of the fast food place, it started warm and sunny. that innocents, before anyone knew a thing, when he donned her halloween costume and war to school. as did tricia, who were to work. kim left early for a job at a nearby mall. robbyn was not home. after working late, she had told her family, she arranged to sleep over at a girlfriends place. she was due home any minute as wendy remembers.

keith morrison: it was a standoff, tense and unpleasant.furious at a team of state >> it was a standoff. tense. karen, the grieving mother furious at a team of state troopers she did not trust determined to find out who murdered her bright, beautiful bonnie vs detectives who in turn ten and trust her. and told her little about what they knew and what they were learning. they eventually let her see the autopsy report and that's when karen saw a dozen or so brutal head wounds. that's also when the medical examiner told her about one extremely important piece of news. horrifying, but potentially useful. bonnie had been raped as well. and as awful as that was, it left one sliver of hope. the killer left behind his dna. match it and they'd solve the case. so, who was it? it it couldn't have been the boyfriend, cameron. >> he was in california. not anchorage. >> -- as a reserve undercover officer and determined that the men in the drug buys were not involved either, but there was one man, a very close with opportunity who returned home to anchora

keith morrison: mark stover was a bit like one of his well trained dogs.e was a creature of habit. mark stover was a bit like one of his well trained dogs. he was a creature of habit. always on time, never missed an appointment. in better early, up with the sun every wednesday market the road for the hour and a half drive south to seattle, four sessions with his loyal clients. a schedule which employees -- >> we saw was joked that he was the eager rooster out of bed. >> and beth. >> he's usually on the road by seven. >> stephanie. >> he had his breakfast and he would be out. they all knew it very well. >> but on the morning of wednesday october 28th, 2009. nothing was routine. nothing at all. >> first, stephen a, who's own house right next door to the cannabis woke up to a course barking dogs. it was about 6 am. >> the kennel dogs were very very upset and it was a huge ruckus next door. >> occasion that sort of thing would happen? >> very seldom to that extent. >> about atm, amber arrived on campus. but still, the dogs were upset. >> they would not settle

here's keith morrison with, haunting images. >> boyd underwood was back. back here where he always belonged, probably should not have retired in the first place, now the buzz cuts and sharp suits all around him were a generation younger with their high tech gear and their fancy new anaheim police department, but who else had the experience to make sense of what was in here? this room of lost causes, so many cases gone cold. justice, denied. like this one about her, although god knows back then when they gave it to him, it did not look so hot. >> are we sure we want to get involved with this, you know? hindsight, i'm sure that's what the thing i should've done. >> maybe not, but then boyd open that file. and what a story he found there, of the beautiful woman, the curious lies, and those strange books with their long ago private thoughts. but was he obsessed? should he have let it consume more than a decade of his life following him into retirement? the woman he found in there was kathryn, kit, as people call. her and certainly to an idolizing little sister

here's keith morrison with after the party. >> what is so optimistic as a party on new years eve?t is hopeful, full of anticipation as the clean slate midnight brings. >> it was a small new years eve party. >> just family and friends. >> disappointment is inevitable, of course. clean slates no matter how ardently desired are messy all too soon. >> we noticed that there was a lot of alcohol out. >> still, we celebrate possibilities and drowned pass sorrows and watch the clock that ticks towards our new beginnings. and our ends. ♪ ♪ ♪ >> on december 31st 2011, an hour north of denver in west evans -- colorado, ashley and tom fallis, surrounded by friends and family dent to the music that brought them together, their wedding song. >> they decided to get up and dance in the middle of their living room. >> everybody watching? >> with everyone watching. >> they were romantic. >> well, i think i said, oh, this is sweet. >> it was their party, ashley's and tom's -- she invited her coworkers like andrea. >> it was casual but she verbally told everyone at work that you should come. >> they

here is keith morrison with silent witness. >> i think i pause for a second and had to take a deep breath the reality of what was going on sinking in. >> those who saw the footprints would not forget them. they were tiny and they were bloody. >> i had to get my composure to finish searching this house to make sure there is nobody else in the house. >> it was the third november 2006, early afternoon. scott irving was the wake county sheriff's deputy dispatched to chatted oaks. the outskirts of raleigh, north carolina. here because of the 9-1-1 call from this placed on birch leaf drive. >> i think my sister is dead. >> tell me what happened ma'am? >> i have no idea, oh my god. >> the caller was meredith fischer, she had just discovered on the floor of the master bedroom the savagely beaten body of her elderly sister, 29 year old michelle young, a woman who in death, was about to be famous. >> listen to me mom, i'm going to tell you what to do but you need to calm down. there's blood everywhere? >> yes. >> listen to me, ma'am is she breathing? >> i don't think so. >> have you checked? >> mic

keith morrison was a good one. you have arrived, or have you?>> and then today in the bay's kris sanchez spoke to the first native american woman in space. >> it was incredible. to be honest, i had pretty high expectations for just, one, being in microgravity and giving in space and, two, all the amazing work we do while onboard and all those expectations were absolutely exceeded. >> as man stepped outside the international space station to finish work for the solar additions. >> execute the job and work well together as a team onboard the space station and with control centers throughout the world we work with. >> she said there was a lot of training and years of preparation, but she was already a colonel in the u.s. marine corps and was a test pilot for the f-18 hornet and super hornet. >> i grew up in the north bay, and as a kid, honestly, i didn't know what i wanted to do. i knew i was interested in math and science but did not have it all figured out as a young child. i remember looking at the stars and being amazed at the thought of going

here is keith morrison with, the family secret. >> yes, families. i suppose you could say this one, the family, not the secret, got started in the middle of nowhere, which is what they like to call it here and ainsworth, nebraska. it wasn't so surprising, perhaps, that one young lloyd ford was done with school, he got out, joined the navy, sailed off to see the wide world from an aircraft carrier. this man at the center of the secret. sandy is his eldest daughter. >> my dad was a fun guy. he was bumping, he love people. people loved him. people tended to gravitate towards my dad. >> especially women. that was not a secret. when floyd went back to little insert after -- one of the hometown girls caught his eye at the county fair. before long, they were married. and that is how sandy came along. and her little sister, pamela, who loved her dad, but apparently wasn't the only one. >> all of the women around her had huge pressures on him and his brother. i've always heard he had to have a woman in his life. >> when lloyd and his wife took the little fam