when you have people like mary lou retton and bela karolyi greatest gymnast they've ever seen in their lives? that's a really big deal. >> reporter: tonight she's one step closer to proving that's the case. she's favored to win four more medals in the individual events. >> i guess what's on the line for her is it would solidify her as the best ever. >> reporter: in fact, she's just two medals away from becoming the most-decorated american gymnast of all-time. >> you kind of feel everything, like all your hard work put into that one moment, and then especially like you all get to share that memory together and it's something you'll remember forever. >> reporter: for "nightline," i'm matt gutman in rio. >>> and next, strong words from a strong man. what "the rock" had to say about some of his "fast and furious" costars. i'm billy, and i quit smoking with chantix. i decided to take chantix to shut everybody else up 't really think it was going to really happen. after one week of chantix, i knew i could quit. along with support, chantix (varenicline) is proven to help people quit smoking.

. >> reporter: bela karolyi who's coached nine olympic champions including the greats like nadia says simone compares to the very best in olympic gymnastics history. >> back at that time it was considered perfection. absolute perfection. mary lou in her time was considered the wonder child of the sport of gymnastics. now simone's time is coming up. the podium, as 1976 gold medalist nadia comanec knows, you've got to bring it when it counts. it's not only how good you are technically in gymnastics. how good you are here too. to put your best routine when the judges do this. >> reporter: pressure that simone's mom nelly biles says she's feeling herself. >> i think simone tries hard not to pay attention to what the expectation is of others. i believe there's more pressure on me than on simone because i am so nervous. i mean, i am just a wreck. >> reporter: she says simone was like a spring from the time she was a little girl. >> if i would describe simone, always jumping. always flipping. i don't think simone ever walked up the stairs. >> reporter: discovering gymnastics was an accident

this is kind of the fruits of the labor. >> 37-year-old, martha married to bela karolyi, the man who coached mary lou retton to gold and carried keri strug after she stuck her vault on a badly injured ankle. over three decade the two romanians who defected from their country under communist control brought an eastern european mentality to u.s. gymnastics. where the only thing better than the day of competition they're won with the years and years of hard work and dedication. leading up to those games. >> reporter: the u.s. women's gymnastics team has become so dominant that a lot of people forget there is also a u.s. men's team competing here in rio in the same arena. and they have had to get creative to get attention. earlier this year they hit one of rio's beaches and staged full-scale ab attack. they joked about competing wit to be ok jekt tbjectified to ge respect. the u.s. women need none of that. they only have to do this. and it's paid off. making them the stars of several tv ad, and arguably the biggest draw at the r if o olympics. >> we are the final five! >> reporter: they

. >> reporter: bela karolyi w's coached nine olympic champions including the greats says simone compares to the vy best in olympic gymnastics history. >> back athat time it was solute perfection.ion. considered the wonder child of the sport of gymnastics. now simone's time is coming up. >>eporter: to get a spot on the podi, as 1976 gold to bring when itt counts.got it's not only how good you are technically in mntics. how good you are here too. to put your best routine when the judozen this. >> reporter: pure that simone mom she's feeling herself. >> i think simone tries hard not to pay attention to what expectation is of others. lievbe there's more pressure on me than on simone bau i am so nervous. i am just a wreck. >> reporter: she says simone was like spring from the time she was a lite girl. >> if i would describe simone, al jumping. alwaysliing. i don't thk somimone ever walked gymnastics was an accident that happened after ald tp was canceled. >> they did an in trip instead and ended up going to bannon's gymncs. i still recall simone coming home w note saying, would we consider he

when you people like bela karolyi saying she's probably the greatest gymnast they're seen, that's a reallye's one step closer to proving that's the case. she's favored to win four more medals in the individual events. >> i guess it would solidify her as the best ever. >> reporter: in fact, she's two melgtds away from becoming the most decorated american gymnast of all time. >> you feel everything. like all your hard work put into that one moment, and then with the team you all get to share that memory together, and it's something you can remember forever. >> reporter: matt gutman in rio. >> and her mother actually says that while simone appears calm during the competitions, her mom is a nervous wreck. she says she don't know how simone manages the feelings. >> it was fascinating watching her with the weight of the team on her shoulders getting ready for that floor routine that would mean gold for them. she seemed calm. she's like i got this. she never seems to buckle under the pressure. glnchts co >>> coming up, an awkward moment at the olympics. i'm only in my 60's. i've got a nice long l

. >> reporter: 73-year-old martha is married to bela karolyi, the man who coached mary allow a lo. over three decades these two romanians who defected from their country when it was under communist c european reality to the u.s. where anything but practice is more practice. >> they are won with years and years of hard work and dedication leading up to those games. >> reporter: the u.s. women's gymnastics team has become so domite, that a lot of people forget there is also a u.s. men's people competing here in rio in this very same arena. and they have had to get creative to get some attention. earlier this year, they hit one instagram. they have joked about competing with their shirts off and willing to be objectived and hoping to get some respect. the u.s. women need none of that. they only have to do this. and it's paid off. maki them the stars of several tv ads and arguably the biggest draw at the rio olympics. >> we are the final five! >> reporter: they have proven that no five women wear gold quite so fiercely. so the big question is can the u.s. women's stage a three-peat in

karolyi and her already retired husband, bela, credited with leading so many american athletes to glorycoaching kerri strug, who landed that heroic vault on an injured ankle. bela right there, carrying her to the podium. >> you have to come as close to perfection as possible. >> reporter: she'll accept nothing less from the final five. one more team to cement her place in history. team members simone biles and aly raisman also compete against tomorrow night in individual events, and you know that martha will be right there in the stands, cheering them both on. david? >> thanks, amy. i hope to see you right back here tomorrow. good night. >>> a body is found inside san francisco's biggest shopping mall. police are calling it a homicide. >> sacred ground at risk of being disturbed in san >>> a good samaritan that stepped in to help save a woman from a sexual assault. >>> a solar installation in the south bay is getting scrutiny to make sure it doesn't disturb the historic native american bur yil site beneath. >> the descendents are taking sure no remains are disturbed. >> it sits south of

karolyi and her already retired athletes to glory. in 1996, coaching kerri strug, who landed that heroic vault on an injured ankle. bela rcarrying her to the podium. >> you have to come as close to perfection as possible. >> reporter: she'll accept nothing less from the final five. one more team to cement her place in history. team members simone biles and aly raisman also compete against tomorrow night in individual events, and you know that mth stands, cheering them both on. david? >> thanks, amy. plus ... a valley woman says she's getting the run around after her kitchen is destroyed. [sot; "i don't know what else to do."] [sot: '"hi i'm stephanie with channel 13 action news ...are you the manager? i am."] and... is ombamacare a success? ... political analyst jon ralston finds out from someone who launched it. but first.. southern nevada neighborhoods.. coyotes hunting for food.. and preying on your pets. 13 action news reporter.... bryan callahan is live..... near boulder highway and tropicana.... where the community is meeting right now.... to address those fears. bryan? the meeting is just getting underway now. i

karolyi and her already retired leadg so many american athletes to glory. in 1996, coaching kerri strug, who landed that vault on an injured ankle. bela right there, carrying her to the podium. >> you have to come as close to perfection as possible. >> reporter: she'll accept nothing less from the final five. one more team to cement her place in history. team members simone biles and ali raisman compete tomorrow night in individual events, and you know that martha will be right there, in cheering them both on. david? >> thanks, amy. i hope to see you right back >>> different day same you see passengers getting off the train and onto a bus. another problem with the in a line. this is the last thing you need when trying to make your flight. >> reporter: or trying to get home. this is the last stop before going to dia. we are with a power issue is. restored. within the last hour, rtd says -- sorry were looking at over headlines once again. it's happening between here and the a pure will got here before 4 pm there were more than 100 people waiting to get downtown. the trains from downtown had to

karolyi. >> we are the final five. >> reporter: nicknaming themselves the final five, because at 73, this is martha's final olympics as coach. the normally stoic romanian shedding tears after hearing the husband, bela, credited with leading so many american athletes to glory. in 1996, coaching kerri strug, who landed that heroic vault on an injured ankle. bela right there, carrying her to the podium. >> you have to come as close to perfection as possible. >> reporter: she'll accept nothing less from the final five. one more team to cement her place in history. team members simone biles and aly raisman also compete events, and you know that martha will be right there in the stands, cheering them both on. david? >> thanks, amy. i hope to see you right back here tomorrow. will leave you speechless. one family forced to marry. check the neighborhood wondering if an accused killer will come back. >>> in youngtown the sheriff or does the murder of a three-year- old boy was filing. we know it was unprovoked. >> the boys brother shae holloway, 16, has been charged as an adult and the family was forced to move out just today from that heartbreaking crime scene. chris joins us live >>reporter: court document