secret would be all over the gym. lauren just 18 years old back then asked us not to use her last name. not after she found herself in the middle of a homicide investigation. when police came across her doing under surveillance on john creech. lauren used to work at the pro shop of the power house gym in chatsworth, california. that s where she first met creech. he was beautiful. he was tall and he was muscular and a lot of women especially wanted to date him. a lot of men wanted to be him. reporter: lauren fell for him. he told her he was separated from his wife chandy, but that didn t stop chandy from calling lauren. she texted and called me and was very belligerent and rude. reporter: angry, perhaps that her husband, then 39 was dating a high school girl. in fact, sheer coincidence, lauren went to high school with gavin smith s son.
not after she found herself in the middle of a homicide investigation when police came across her while doing surveillance on john creech. lauren used to work in the pro shop of the powerhouse gym in chatsworth, california. and that s where she first met creech. he was beautiful. he was tall, and he was muscular. and a lot of women especially wanted to date him, a lot of men wanted to be him. reporter: lauren fell for him. he told her he was separated from his wife chandy, but that didn t stop chandy from calling lauren. she texted and called me and was very belligerent and rude. reporter: angry, perhaps, that her husband, then 39, was dating a high school girl. in fact, sheer coincidence, lauren went to high school with gavin smith s sons. so she knew when he disappeared in may 2012.
powerhouse gym was very gossipy. so if you told the wrong person something, your secret would be all over the gym. reporter: lauren, just 18 years old back then, asked us not to use her last name. not after she found herself in the middle of a homicide investigation when police came across her while doing surveillance on john creech. lauren used to work at the pro shop of the powerhouse gym in chatsworth, california. and that s where she first met creech. he was beautiful. he was tall, and he was muscular. and a lot of women especially wanted to date him, a lot of men wanted to be him. reporter: lauren fell for him. he told her he was separated from his wife chandy, but that didn t stop chandy from calling lauren. she texted and called me and was very belligerent and rude. reporter: angry, perhaps, that her husband, then 39, was
welcome back. nearly three years after gavin smith s disappearance, john creech was charged with his murder. police believe john carried out the rage-fueled killing as revenge for gavin s affair with john s wife chandy. several of john s associates admitted they helped john hide evidence. but investigators did not think they had the whole story just yet. and there was one person who could give it to them directly. so they figured out a way to get it. once again, here s keith morrison. reporter: detectives john o brien and ty labbe had a problem. an important witness who wouldn t talk. chandrika creech had clammed up. but there s more than one way to get a story. they found an associate of john creech s, someone who knew chandy. they convinced him to wear a wire and meet with her. it worked. do you want the whole story? yeah.
when police came across her doing under surveillance on john creech. lauren used to work at the pro shop of the power house gym in schatzworth, california. that s where she first met creech. he was beautiful. he was tall and he was muscular and a lot of women especially wanted to date him. a lot of men wanted to be him. reporter: lauren fell for him. he told her he was separated from his wife chandy, but that didn t stop chandy from calling lauren. she texted and called me and was very belligerent and rude. reporter: angry, programs, that her husband, then 39 was dating a high school girl. in fact, sheer coincidence, lauren went to high school with gavin smith s son. though she knew when he disappeared in may, 2012, but made no connection between that and something she noticed about