San Diego County authorities have reported the second death in a week at the Vista jail.
The medical examiner's office says 43-year-old Marion Lopez of Cardiff was found unresponsive in her cell on June 23 by deputies making hourly rounds.
Efforts to revive her failed and she was pronounced dead at the scene. The cause of her death is under investigation.
On Saturday, deputies found 21-year-old Daniel Sisson of Cardiff unresponsive in his cell.
Sisson was in his cell at the Sheriff’s Department when deputies found him not breathing.
Paramedics were called but were unable to resuscitate him, according to the coroner’s office. He was declared dead shortly after.
An autopsy will be performed by the medical examiner to determine the cause of Sisson's death.
Mike Russo, Sisson’s uncle, said the family would perform an independent autopsy once they receive custody of the body.
“Something’s just not right,” Russo said. “I don’t want this to be swept under the rug,”
According to Russo, Sisson was severely asthmatic and had underlying health issues from when he was a boy. He required the use of an inhaler because of his condition.
Sisson had been booked for drug possession and reckless driving.