brent including an alleged substance abuse problem fueled by his friendship with a man named jeffrey crosby been convicted of felony possession with intent to sell cocaine in the past. something brent admitted in a deposition last year. >> what was the mechanism through which you would purchase controlled substances from jeffrey? >> pay him cash and he would provide me substances. >> reporter: and brent may not have been the only one reaching out to jeffrey crosby. according to a police report, phone records show six calls and texts from susan's phone to crosby in the days before she died. >> why do you think she was calling him? >> she was going to turn him in and brent in. she wanted brent to stop, and she thought that would get him stopped. >> reporter: brent disputed that in his deposition. >> she said she was going to turn you in for using drugs. fair? >> i don't have any recollection of that. >> what statements did she use when she threatened to discuss your drug use with the board that supervises you? >> honestly, i don't recall any threat of that nature. she just -- >> you just told