Two months before Hayes died, Dean Riopelle, whom Tichelman identified online as her boyfriend, died at his home in Milton, Georgia. Tichelman was there at the time, and she called 911.
"Her story was: She was in the shower, heard a large crash, and then found him unconscious on the floor," Capt. Shawn McCarty of Milton police told CNN Thursday.
"I think my boyfriend overdosed or something, he, like, he won't respond," she said in the brief call, shortly before hanging up.
The dispatcher called Tichelman back. Asked why she thought it was an overdose, Tichelman responded, "Because there's nothing else it could be." Asked whether it was accidental or intentional, she replied, "definitely accidental." He was taking painkillers and "drinking a lot too," she said.
The call cut off. The dispatcher tried at least twice more, but the phone rang and went to voicemail.
The medical examiner ruled Riopelle's death an accidental overdose from heroin and alcohol. "At the time, we never thought anything different," McCarty said.
Riopelle owned the Masquerade Nightclub in Atlanta and played in a local band.
A former band mate doubts Riopelle overdosed. "There is no way that guy did heroin, no freaking way," Allen Vine told CNN affiliate KRON.
Vine said he met Tichelman shortly after Riopelle started dating her.
"He was in no shape or form, any kind of user for heroin or drugs or anything," Vine said. "He was health conscious."
Now authorities are taking a new look at that death "to make sure there's nothing (else) to it," McCarty said.
Tichelman also was arrested last year in Atlanta and charged with battery and false report of a crime. The details of that incident were unclear.