Officials identified the body found in the Charles River on Monday morning as Pedro C. Rodriguez, 69, of Cambridge on Thursday.
“While the investigation into his death remains ongoing, it’s being investigated as a non-homicide,” said Suffolk District Attorney spokesman Jake Wark.
Earlier on Monday, Wark said Rodriguez was in Cambridge Hospital.
“He had some injuries on them that were consistent with injuries that brought him to Cambridge hospital earlier on the day that he had died,” he said.
At the time, Rodriguez was apparently in a state of intoxication that prompted hospital staff to keep him for observation for several hours, Wark said.
The only injuries Rodriguez had were ones he had sustained earlier that day, Wark said, and there were no signs of violence or struggle in connection with his death.
“The circumstances simply did not lend themselves to foul play,” Wark said.
Wark said the investigation into the death of Jonathan Dailey, whose body was found in the Charles River on Tuesday, remains ongoing as well.
“With regard to Mr. Dailey, the medical examiner conducted a preliminary examination of the remains on Tuesday, but did not make a determination as to cause or manner of death,” he said.
Wark said the medical examiner will conduct further specialized texting, including toxicology screens and blood work.
Investigators are also collecting surveillance images near Dailey’s house for more information, he said.
For two consecutive mornings, members of the BU community discovered the bodies in the Charles River.
Employees of the BU Sailing Pavilion spotted the first body at about 8:00 a.m. on Monday. A BU rowing coach saw the second body at about 7:25 a.m. on Tuesday.