Police returned to the scene Tuesday where a partially decomposed body was found in a dry area of an East Boston marsh last week.
Massachusetts State Police troopers were back at the Belle Isle Marsh on Tuesday, conducing a line search of the area looking for evidence.
At least two canine teams were also involved in the search, and one officer was seen using a metal detector.
An autopsy was conducted Sunday, and the body has been identified, but the Suffolk County District Attorney's Office is not publicly releasing that information.
The cause and manner of death have not been released.
State Rep. Adrian Madaro of East Boston said he has been briefed on the investigation and was told the victim is a young male - a teen or young adult - and that one possibility investigators are looking into is whether it was a gang-related killing.
“History tends to lend itself to this being gang related so I think that’s a natural theory that they go on any time there is a teenage body found,” Madaro said.
The discovery of the body has parents in the area understandably concerned about their own children.
“Winter time it gets dark early. I’m not sure if they are going to be safe or if someone is going to follow them or chase them home,” said Alba Adana, who expressed concerns over her daughter’s safety.
The investigation remains very active, investigators said, and it is being treated as a criminal matter.