The death of an inmate in the Jefferson County Jail in May was due to natural causes, according to the coroner's office.
Haley Marie Estis, 24, of Graysville, was found unresponsive in her cell at the Jefferson County Jail May 1, according to reports. Estis had been in jail for seven days. Authorities said she was alone in her cell at the time of her death.
The county coroner's office performed an autopsy on Estis, said Chief Deputy Coroner Bill Yates. The results of the autopsy came back June 3, he said.
"The cause of death was sepsis due to bacterial endocarditis," Yates said. He described it as a major heart infection due to complications from intravenous drug use.
There were no drugs or alcohol in her system at the time of the autopsy, he said.
"(The infection) was due to her lifestyle beforehand, not any particular drug," Yates said.
Estis had a history of IV drug use, including heroin, he said. She had a criminal record going back to 2016 with offenses including alluding arrest, disorderly conduct and various drug charges.
Yates said he doesn't see many death cases from the Jefferson County jail, which he called the largest in the state.
This was the second death this year at the Jefferson County Jail; the first was a murder suspect from Hoover who was killed in a fight with another inmate.
According to jail records, Estis was arrested and booked into the jail on April 25 on two counts of failure to appear from April 19. She was also charged with two counts of illegal possession of a controlled substance on April 30, jail records state.