Timothy Cunningham's remains were found Tuesday evening by fishermen along the Chattahoochee River in a rural area that had been previously searched and is not easily accessible by foot, authorities said at a press conference.
A Centers for Disease Control and Prevention employee who disappeared nearly two months ago under what officials called "an extremely unusual set of circumstances" has been found dead.
A CDC researcher who went missing over seven weeks ago has been found dead in a Georgia river.
Unfortunately, Timothy's body was found near the Chattahoochee River late Tuesday night, according to WSB-TV Atlanta.
Described as a highly respected epidemiologist - a "golden boy" by one colleague - for the CDC, the 35-year-old vanished after he left work on the morning of February 12, telling his CDC colleagues he wasn't feeling well.
"Barring new information coming forward, we may never be able to tell you how he got to the river", Mr. O'Connor said.
Police previously had said they had no evidence of foul play but couldn't rule it out.
The only things police could confirm from the scene were that Cunningham was wearing his jogging suit where he was found and had three small crystals - similar to those police said he collected - in his pocket.
Although Massachusetts as a whole has not seen an overall increase in the number of new HIV diagnoses, the number of new diagnoses attributed to people who inject drugs has increased in recent years, most notably in the cities of Lawrence and Lowell. The 35-year-old left work early that day saying he wasn't feeling well, and wasn't seen again.
The Times reports Cunningham was promoted in July to commander in the uniformed United States Public Health Service.
Co-workers told authorities that Cunningham had been "obviously disappointed" on the morning of February 12, when he learned why he wasn't getting the promotion he'd hoped for, police have said.
O'Connor said last month he thought the disappearance was "extremely unusual", because all Cunningham's belongings were at his home.
When they arrived at his house a few days later, Cunningham's parents said, they knew something was wrong because his Tibetan spaniel was unattended. He worked on public health emergencies including Superstorm Sandy, the Ebola outbreak and the Zika virus. He held two degrees from Harvard University.
There are still many unanswered questions surrounding Cunningham's disappearance and what led up to his death.