was to let the landrys know in the most humane way possible before the media was on to it. he called his chief of police. i remember chief of police coming to the front door. i knew when he walked in. i could tell by the look on his face what he was going to tell me. i didn t want to hear it. after i got done crying, i wanted to take a shower, like i was going to wash it all away. my matt. coming up, could one man have done this? i m 6 6 , 280 pounds. matt could take me out. matt was that strong. maybe one man didn t when dateline continues. then own it
night. reporter: but maybe an overly festive night. fran woke up sunday, sick as a dog. matt attended to her. he gave me a hot bath, brought me tea and a thermometer. reporter: he kind of showed you a tender side, huh? yeah. reporter: then matt, still playing nurse maid, phoned his mom. he goes, is there anything else i should be doing? no, it sounds like you were doing everything, matt. reporter: there were plans for a backyard barbecue later that afternoon for his parents. it would be a chance for fran to get to know matt s sister s boyfriend. he says, okay. he says, she s going to take a little nap. and then when she wakes up, we ll come over. and i told him told him like i tell all of my kids, i said, i love you, matt. and he said, i love you too, mom. reporter: matt offered to make a fast food run so fran would have something in her stomach, but she was
cops in another jurisdiction, roseville, some 13 miles south where francesca lived and where matt had last been seen. did you get the feeling you were being brushed off? yes. reporter: it was a nuisance case? yes. and he was like wait in the lobby. reporter: was the family frustrated? i think they were frustrated. reporter: but chesterfield detective scott blackwell was struck by doreen landry s unshakable belief in her son s integrity. i said the right person will be taking care of this. it will be taken care of. we re not going to leave you hanging. reporter: detective blackwell was especially interested to read doreen s printout of the suspicious atm withdrawals from matt s account. he said the first thing he s going to do is let s find out if this was matthew who did these withdrawals. reporter: so the detective, hoping to find an answer on the security cam video, went down to the sunoco in the crime-ridden streets and caught a break. i went to sam s club, and
carjackings? had he also maybe stolen matt s car? by then, the abandoned car had been towed to the police station in matt s hometown, chesterfield. the detective called a counterpart there about his hunch. i told him, i said, i think it s all related. i said, can you get somebody to go into the car without destroying any evidence and see if there is anything in there that links the bank robbery to matt landry. reporter: and sure enough, there was. and it had to do with that map found inside matt landry s car. when investigators got a closer look at it, they saw an x marks the spot pinpointing the flag star bank, which the guy in the shades had robbed, and where he briefly held a 19-year-old hostage. now lieutenant blarek began filling in the blanks. he figured that the guy who pulled off the bank job was the same guy who carjacked matt landry s honda with matt in if. but he wasn t ready to share his conclusion with matt s parents yet. he had something to do first. at 11:30 tuesday
that s what saved her life. grass is growing. my flowers are blooming. but i am just dead inside. just dead inside. reporter: in the days after she lost her son, a grief-stricken doreen landry went public with a cause important to her condemning the burned-out and abandoned houses in northeast detroit that area gangs call home. i m pleading to the mayor of detroit, that area needs to be cleaned up. it s nothing but a garbage pit. there s thousands of houses in detroit that are abandoned. that they live in. reporter: just raze em, knock em down. just flatten em. reporter: in fact, in 2010 the detroit mayor started a program to do just that. this house where matt s body was found was demolished. in the fall of 2010, maslamani and taylor were tried and found guilty of all charges.