On Fourth of July weekend in 2005, police arrived at the Franklin, Tenn., apartment of Lesa Buchanan and were surprised by what they found: a cache of prescription drugs and sex toys. Lesa's boyfriend, Dr. Christ Koulis, told police they had spent most of the weekend in her bedroom having sex.?Koulis, a plastic surgeon, had called 911 when she stopped breathing, and said he performed CPR, but that there was no pulse.?At her apartment, detectives discovered used syringes with traces of oxycodone, a powerful narcotic available only from a prescribing physician. “48 Hours" correspondent Troy Roberts reports. This classic "48 Hours" episode last aired on 8/21/2010. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.