MEMPHIS, Tenn. — Shelby County Sheriff’s Office authorities shared information Monday on two inmates who died inside the jail over the weekend.

Both inmates had been brought to 201 Poplar in mid-December.

One inmate died Friday. The sheriff’s office identified him as Justin Segerson, 41.

He likely died of a drug overdose, and fentanyl was found, sheriff’s office spokesman Anthony Buckner said.

“It’s certainly something that we want to know how Mr. Segerson acquired these drugs and where they came from,” Buckner said.

The investigation is ongoing, and the Medical Examiner’s office will make the final determination on cause of death.

Buckner said it was not known how fentanyl got inside the jail, and the sheriff’s office was investigating.

“I can assure you that we’re not just sitting on our hands,” Buckner said.

The Shelby County Sheriff’s Office said officers at 201 Poplar are working around the clock to keep narcotics out.

From dog sniffing dogs to routine and unscheduled searches, officers have tried multiple different methods.

However, nothing is foolproof.

The second death happened Saturday around 4:15 a.m., when an inmate was “found unresponsive, apparently due to suicide.”

That inmate was identified as Sherman Weakley Jr., 22.

Buckner called Weakley’s death one of the saddest he’s worked on. Buckner said Weakley left behind a suicide note.

“This young man seemed to be troubled, if this letter was written by him,” said Buckner.

He said Weakley had gotten out of his cell at the time of his death. The jail at 201 Poplar has had longstanding issues with doors not working.

“Had the door been replaced on (his) cell, he would’ve been inside of the cell with another inmate who I believe would’ve prevented (this) from ever happening,” Buckner said.

Buckner said both deaths speak to the importance of mental health.

Out of the 2,500 inmates, nearly 700 are prescribed some sort of mental health or behavioral health medication.

“There are different protocols that are in place once we know that a person has a high risk of committing suicide, but I say again, the detainees have to be good partners with us,” Buckner said.

WREG asked Buckner if they have enough jailers to adequately oversee the inmates and he said staffing is still an issue.

Over the past year, he said SCSO has hired 150 correctional officers but said they still need 300 more.