reporter: anna s boyfriend, michael stodnick, had called police to say he was worried. he said he d gone to her house the night before to pick her up for a date, but she didn t answer the door. and now her colleagues were saying she hadn t shown up for work. frisco sgt. jay reim was one of the officers checking the home. no signs of any type of forced entry, anywhere. reporter: which means, also, you don t really have any excuse to go inside. correct. yeah, we didn t we didn t have any reason to go kick in somebody s door because there didn t seem to be anything out of the norm. reporter: the doors were locked, so sgt. reim asked some officers to find anna s 20-year-old son to help them get into the house. igor was by then a student living at the university where his mother worked. they show up with the son and the key and the alarm code. you gettin any kind of a read off the son? i didn t talk to the son. he sat in the car. reporter: and that s where igor waited while
reporter: anna s son, igor also managed to speak but it wasn t easy for him, or for anyone. they shared their grief that day, their memories but on another level they were also sharing a few suspicions. donna knew the odds. anna was probably killed by someone close to her. and that someone could have been at that very service, putting on a show. you know, the fact that somebody cries on the stand or at a funeral or so on and so forth, well, of course. i mean, if they ve just committed a crime and and yes, they can still cry. grief does not imply innocence. no, absolutely not. reporter: in the days that followed, detectives would consider the cast of characters who had reveled in the glow of the anna moses starlight, and then mourned her passing. and some began to drop off the list of suspects. including anyone she might have
for igor s sake they parted as friends. and anna was again on the lookout for a nice guy. which brings us to michael stodnick. michael is a very attractive, very intelligent, soft-spoken young man, about anna s age. he is a professor at the university of dallas. reporter: and anna s new man. good looking, age appropriate, a mild-mannered business professor. so with a nice new boyfriend and a good job, anna moses was once again moving on up, until the day in january of 2015, when she didn t show for work. michael said he couldn t get in touch with her, so he contacted police. they went to check on her. and so when you get a welfare check call, what do you normally expect to find? usually go to the house and find, you know, somebody there who didn t wanna talk to the person who s trying to find them.
killer. never. never. never. i just know igor is not capable of murder. reporter: and another friend, jayshree bihari, remembered how close anna and igor always were. she just adored him. her son was like the center of her life. reporter: what did she tell you about her son? you know, she just said that, i want him to pursue his passion, which is in music. and she would always go to his concerts. reporter: igor played guitar in a christian rock band, combining two big interests music and religion. he was studying speech pathology at the u.t. dallas, the same school where his mother worked. she used to even wash his clothes on weekends and when he was at the dorm. reporter: he s in college and she s still doin his laundry. yes. she will take all his clothes, wash them. iron them. get him some food, homemade food and stuff like that. reporter: the last time donna
reporter: and they never stopped supporting each other. soon, bob and igor moved into anna s house to grieve together. it was another example of the affection for his adopted son that had always impressed anna s friends. bob was essentially the only father that igor has ever known. and when igor was sick bob definitely delivered? was incredibly, kind, and loving and caring to igor when igor was suffering with, ah, cancer. there was a little seven-year old boy has really, really rare form of bone cancer. reporter: everything bob did was to protect igor even the divorce. anna and bob kept it secret for months until igor could finish high school. then they made sure it was amicable also for igor. she said that he will be coming often to see igor and we