three-time tour de france winner greg lemond and his wife kathy first learned about hidden motors in en greg met stefano varjas in paris and took a test ride. greg was outspoken about chemical doping, and now has the same level of concern about the motors. >> greg lemond: i've watched, last couple years, and i'm going, "i know the motor's still in the sport and..." >> whitaker: you know it is still in the sport? >> lemond: yeah. yeah, there's always a few bad apples and, because, it's a lot of money. >> whitaker: he is so concerned about it that while working as a broadcaster at the tour de france, he and his wife worked secretly with the french police investigating the motors. his best source, it turned out, was stefano varjas. >> kathy lemond: i asked stefano if he would please come and talk to the french police. >> whitaker: did he? is he cooperating with the police? >> kathy lemond: completely. >> whitaker: stefano said he told the french police that just before the 2015 tour de france he again sold motorized bikes to an unknown client through a middleman. he said he was directed

greg lemond won it twice... he would later go on to win the prestigious tour de france.l giro" which is italian for 'the tour'.ú (james) the u-s open rolling on in flushing meadows. top seeded rafael nadal facing alexander dol- go-po-lov. the ukranian didn't have much of a chance (tiffany) nadal was just too much -- dominating the match from the outset to win in straight sets. he is back in the quarters for the first time since 2013. roger federer also advanced in his match. also, four american women have advanced to the quarterfinals. venus williams, coco vandeweghe, sloane stephens and madison keys.this is most american women to reach the quarterfinals of a us open since 2002 (james) coming up...a live report from the east bay on the rallies planned ahead of today's expected daca announcement.(tiffany) and the latest on the gilroy wildfire that's scorched over 100 acres so far. (vo) my name is bryan. i'm proud to make dog chow in davenport, iowa. dog chow's been a part of my family's life for over 40 years. my grandfather made it and now i'm making it. as a micro-biolo

greg lemond won it twice... he would later go on to win the prestigious tour de france. and goodbye final look at the weather with chief meteorologist brittney shipp. a full hour of entertainment news is on the way. at 7:00 it's inside edition, followed by entertainment tonight at 7-30. then we're back with kron 4 news at 8:00 for years, men have enjoyed their man caves without guilt. now, it's mama's turn. welcome to my she shed. i've got my favorite outfit on. my literature. my armando! and these are my treats! i'm just gonna have one if that's okay. of course it's okay. this is my world. fiber one 90 calorie brownies. allll mine. deborah: g)rpkversus gator. exclusive. how little julianna beat a 9- foot alligator that clamped down on her leg. >> when you stuck your finger in that alligator's nose, what did the alligator do? then, labor day weekend 20 years ago. princess diana died. >> now the forgotten story of was a nanny for an american family. >> i fell in love with her. >> you had no idea she came from this family? >> not a clue. >> and, killer umbrellas. >> oh my