. >> questions tonight about what went on at the famed karolyi ranch. >>> plus, tank sinatra, he mighteem like a regular guy, but he's amassed an army of instagram followers with hilarious posts, but cyber comedy is not easy. inside the making of a viral sensation. >>> and cat and house. they're having a hair ball in their custom-made two-story home, for an all animal reality show. who set this up and why are they doing this? but first tonight the "nightline" 5. >>> and number ♪ ♪ >>> good evening and thank you for joining us. shocking allegations tonight against the former head physician of the u.s. women's olympic gymnastics team, accused of sexually assaulting young girls in his care over a period of 19 years. allegations of an extraordinary abuse of power against girls too young to understand what was happening to them and afraid to peek speak out. but now strengthened by one another, the accusers are coming forward in droves. >> he was helping me get to my olympic dream, something i've been dreaming about since i was 3 years old. i didn't even question it. >> reporter: in 2000, ja

gymnastics suggested that i go to the karolyi ranch to work with their doctor. >> lapook: the karolyioutside houston, texas is a mecca for elite gymnasts who have given up any semblance of normal childhood to pursue their olympic dreams. run by the legendary coaches bela and martha karolyi, it's where members of the u.s. national team for artistic gymnastics come roughly once a month for several days of intensive training. the girls stayed in cabins on the property, and dr. nassar would be there to provide medical treatment. >> howard: he started massaging me. and, he had asked me not to wear any underwear. and then he just continued to go into more and more intimate places. >> lapook: and when that happened, what, what was going through your head? >> howard: i remember thinking something was off, but i didn't feel like i was able to say anything, because he was, you know, this very high profile doctor, and i was very lucky to be at the ranch working with him. >> lapook: did any of the other girls in your cabin talk to you about dr. nassar? >> howard: yes. the girls would say, yeah, h

usa gymnastics suggested that i go to the karolyi ranch to work with their doctor. >> reporter: the karolyianch outside houston, texas, is a mecca for elite gymnasts who have given up any semblance of normal childhood to pursue their olympic dreams. run by bela and marta karolyi it's where members of the u.s. team come for intensive training. the girls stayed in cabins on the property, and dr. nassar would be there to provide medical treatment. >> he started massaging me, and he had asked me not to wear any underwear. and then he just continued to go into more and more intimate places. >> and when that happened, what was going through your head? >> i remember thinking something was off, but i didn't feel like i was able to say anything. because he was, you know, this very high profile doctor and i was very lucky to be at the ranch working with him. >> did any of the other girls in your cabin talk to you about dr. nassar? >> yes. the girls would say, yeah, he touches you funny. >> i remember being uncomfortable because of the area, but in my mind, i was like, if this helps, i'll do anything.

." >> usa gymnastics suggested i go to the karolyi ranch to work with their doctor. he started massaging me and he had asked me not to wear any underwear. and then he just continued to go into more and more intimate places. >> the karolyi ranch belongs to famed coaches marta and bella karolyi who are named in a separate lawsuit, alleging they created a toxic environment that allowed nasser's abuse to happen. the karolyis are devastated by the accusations, say their lawyer and they knew nothing about nasser's allegations. dr. nasser's lawyers insist that any allegations that his medical practices were performed for any purpose other than proper medical treatment are patently false and untrue. tonight larry nasser remains locked up without bail while one of the country's most beloved olympic sports is rocked to its core. >> multiple lawsuits also accuse usa gymnastics of turning a blind eye to all of this. the organization denies the allegations and said they reported nasser to the fbi five weeks after learning about the alleged abuse and then fired him. lester? >> ste

. >> the karolyi ranch belongs to famed coaches karolyi who are named in a separate lawsuit, alleging they created a toxic environment that allowed nasser's abuse to happen. lawyers for the karolyis say their clients a devastated by the accusations, say their lawyer and they knew nothing about nasser, until usa gymnastics fired him in 2015. nasser's lawyers insist that any allegations that his medical practices were performed for any purpose other than medical treatment are patently false. tonight larry nasser remains locked up without bail. while one of the country's most beloved olympic sports is rocked to its core. >> what is usa accuse usa gymnastics of turning a blind eye to all of this. they vehemently deny that charge. they say they reported nasser to the fbi five weeks after they heard the first allegations and then they fired him. >> stephanie gosk thank you. >>> tonight, california experiencing one of the most powerful storms seen there in years. hillsides still scarred by summer fires endanger in sliding away as the wind-driven rains force hundreds to evacuate. the water th

they suggested i go to the karolyi ranch to work with their doctor. >> reporter: the karolyi ranch outsideouston, texas, is a mecca for any gymnast to pursue their olympic dreams. run by marta and bela karolyi, it's where members of the u.s. gymnastics team come once a month for several days for intensive training. girls stayed there for training. >> he started to massage me and he asked me not to wear any underwear, and then he just continued to go into more and more intimate places. >> and when that happened, what was going through your head? >> i remember thinking something was off, but i didn't feel like i was able to say anything because he was, you know, a very high-profile doctor and i was very lucky to be at the ranch working with him. >> did any of the other girls in your cabin talk to you about dr. nassar? >> yes. the girls would say, yeah, he touches you funny. >> i remember being uncomfortable because of the area, but in my mind i was like, if this helps, i'll do anything. >> did you ever complain to anybody about it? >> no. >> why not? >> it was treatment. you don't complain a

nassar abused her at the karolyis' famed training ranch. in text. an atmosphere with intimidation, fear and control, you know, we weren't really allowed to talk. they controlled what we ate. >> reporter: the karolyis telling "gma" they denied the existence of a toxic environment, in addition, the karolyis were never aware that dr. nassar would be performing any procedures which are now the subject of the present litigation. questions now arising about how this doctor had access to some of the most elite young athletes in the country for so many years. >> yes, usa gymnastics won all these olympic gold medals but what are they worth if this is how they were abused and treated? >> what were they worth? the michigan attorney general says they'll seek the longest possible sentence against larry nassar, just to give you a sense, each charge is punishable by up to life in prison. he is expected to be arraigned this morning, not commenting on the latest charges but has pleaded not guilty to prior charges of sexual abuse. usa gymnastics says they are outrage

. >> questions tonight about what went on at the famed karolyi ranch. >>> plus, tank sinatra, he might

. >> they suggested i go to the karolyi ranch to get treatment from their doctodoctor.e started massaging me and asked me not to wear underwear. he continued to go more and more intimate places. >> reporter: the ranch belongs to marthakaroyl. lawyers for the ranch say the clients are denying the accusations and knew nothing about them. the lawyers insist any allegations that practices was medical treatment are false and untrue. larry nassar remains locked up without bail. and the beloved olympic sports is rocked to its core. stephanie gosk, nbc news, new york. >>>nal forecast. here in the northeast we're looking at some pretty good weather. >> look at us. we're all smiling. o perfect weather on a weekend. hello. 58 degrees near new york city today. but chicago, you are the big winners. we're talking about possibly record highs. temperatures in the mid-60s not only today but also in through tomorrow. cape canaveral, a few scattered showers possible there. out west a lot of showers. now take a look at your local weather. >> good morning. sun is up and a clear sky on this