defense attorney, bruce fleisher, thought about two words, reasonable doubt. a lot of people thought that because of the rothstein ponzi scheme, that he had something to do with the murder of melissa lewis. reporter: and debra villegas was back in the hot seat herself, being grilled by homicide detectives who bluntly asked her about scott, the ponzi scheme and melissa s murder. she had her lawyer with her this time. was melissa aware of anything that scott was involved with? and i m i m gonna use a term the ponzi scheme. no. reporter: and then the questioning got more direct. any discussion between you and scott about having melissa killed? absolutely not. are you aware of any discussion or conspiracy to hire tony for melissa lewis murder? no. before i would have let him kill melissa, i would have let him move back into my house. that s the biggest regret that i have in all of this. reporter: but detectives did learn one new thing about melissa and scott, some di
defense attorney, bruce fleisher, thought about two words, reasonable doubt. a lot of people thought that because of the rothstein ponzi scheme, that he had something to do with the murder of melissa lewis. reporter: and debra villegas was back in the hot seat herself, being grilled by homicide detectives who bluntly asked her about scott, the ponzi scheme and melissa s murder. she had her lawyer with her this time. was melissa aware of anything that scott was involved with? and i m i m gonna use a term the ponzi scheme. no. reporter: and then the questioning got more direct. any discussion between you and scott about having melissa killed? absolutely not. are you aware of any discussion or conspiracy to hire tony for melissa lewis murder? no. before i would have let him kill melissa, i would have let him move back into my house. that s the biggest regret that i have in all of this. reporter: but detectives did learn one new thing about melissa and scott, some di
ponzi scheme comes into play? reporter: the f.b.i. combed through the detectives files looking into a melissa-rothstein-ponzi link. they spent a week going through every inch of that case to find out if there was a connection to scott rothstein. reporter: with all these messy complications, tony s defense attorney, bruce fleisher, thought about two words, reasonable doubt. a lot of people thought that because of the rothstein ponzi scheme, that he had something to do with the murder of melissa lewis. reporter: and debra villegas was back in the hot seat herself, being grilled by homicide detectives who bluntly asked her about scott, the ponzi scheme and melissa s murder. she had her lawyer with her this time. was melissa aware of anything that scott was involved with? and i m i m gonna use a term the ponzi scheme. no. reporter: and then the questioning got more direct. any discussion between you and scott about having melissa killed? absolutely not. are you awa